diff --git a/app/MindWork AI Studio/Components/AttachDocuments.razor.cs b/app/MindWork AI Studio/Components/AttachDocuments.razor.cs
index c52bd115..87289024 100644
--- a/app/MindWork AI Studio/Components/AttachDocuments.razor.cs	
+++ b/app/MindWork AI Studio/Components/AttachDocuments.razor.cs	
@@ -102,13 +102,14 @@ public partial class AttachDocuments : MSGComponentBase
     private uint numDropAreasAboveThis;
     private bool isComponentHovered;
     private bool isDraggingOver;
+    private bool isFileDialogOpen;
     private MediaImportOwner EffectiveImportOwner => this.OwnerChat is not null
         ? MediaImportOwner.ForChat(this.OwnerChat.ChatId)
         : this.ImportOwner ?? this.fallbackMediaImportOwner;
 
     private MediaImportTarget EffectiveMediaImportTarget => new(this.EffectiveImportOwner, string.IsNullOrWhiteSpace(this.Name) ? "attachments" : this.Name);
 
-    private bool IsUnavailable => this.Disabled || this.MediaTranscriptionService.IsBusy(this.EffectiveImportOwner);
+    private bool IsUnavailable => this.Disabled || this.isFileDialogOpen || this.MediaTranscriptionService.IsBusy(this.EffectiveImportOwner);
 
     #region Overrides of MSGComponentBase
 
@@ -310,13 +311,21 @@ public partial class AttachDocuments : MSGComponentBase
         if (this.IsUnavailable)
             return;
 
-        var selectFiles = await this.RustService.SelectFiles(T("Select files to attach"));
-        if (selectFiles.UserCancelled)
-            return;
+        this.isFileDialogOpen = true;
+        try
+        {
+            var selectFiles = await this.RustService.SelectFiles(T("Select files to attach"));
+            if (selectFiles.UserCancelled)
+                return;
 
-        await this.AddFileBatchAsync(selectFiles.SelectedFilePaths);
-        await this.DocumentPathsChanged.InvokeAsync(this.DocumentPaths);
-        await this.OnChange(this.DocumentPaths);
+            await this.AddFileBatchAsync(selectFiles.SelectedFilePaths);
+            await this.DocumentPathsChanged.InvokeAsync(this.DocumentPaths);
+            await this.OnChange(this.DocumentPaths);
+        }
+        finally
+        {
+            this.isFileDialogOpen = false;
+        }
     }
 
     private async Task OpenAttachmentsDialog()
@@ -397,7 +406,17 @@ public partial class AttachDocuments : MSGComponentBase
 
     private async Task AddFileBatchAsync(IEnumerable<string> paths)
     {
-        var existingPaths = paths.Where(File.Exists).ToList();
+        var pathList = paths.ToList();
+        var inaccessiblePaths = pathList.Where(path => !File.Exists(path)).ToList();
+        if (inaccessiblePaths.Count > 0)
+        {
+            this.Logger.LogWarning("Could not access {Count} dropped or selected file(s): {Paths}", inaccessiblePaths.Count, string.Join(", ", inaccessiblePaths));
+            await this.MessageBus.SendWarning(new(
+                Icons.Material.Filled.Warning,
+                this.T("Some files could not be accessed. Please select them with the file chooser instead.")));
+        }
+
+        var existingPaths = pathList.Except(inaccessiblePaths).ToList();
         var mediaPaths = existingPaths.Where(IsTranscribableMedia).ToList();
         var regularPaths = existingPaths.Except(mediaPaths).ToList();
 
diff --git a/app/MindWork AI Studio/Components/ConfigurationFile.razor b/app/MindWork AI Studio/Components/ConfigurationFile.razor
index ed2f9be2..06ec26b0 100644
--- a/app/MindWork AI Studio/Components/ConfigurationFile.razor	
+++ b/app/MindWork AI Studio/Components/ConfigurationFile.razor	
@@ -19,7 +19,7 @@
                Variant="Variant.Outlined"
                Color="Color.Primary"
                Size="Size.Small"
-               Disabled="@this.IsDisabled"
+               Disabled="@(this.IsDisabled || this.isFileDialogOpen)"
                Class="mb-1"
                OnClick="@this.OpenFileDialog">
         @T("Choose File")
diff --git a/app/MindWork AI Studio/Components/ConfigurationFile.razor.cs b/app/MindWork AI Studio/Components/ConfigurationFile.razor.cs
index 82d56d18..b9042586 100644
--- a/app/MindWork AI Studio/Components/ConfigurationFile.razor.cs	
+++ b/app/MindWork AI Studio/Components/ConfigurationFile.razor.cs	
@@ -49,6 +49,7 @@ public partial class ConfigurationFile : ConfigurationBaseCore
     private RustService RustService { get; init; } = null!;
 
     private string internalText = string.Empty;
+    private bool isFileDialogOpen;
     private readonly Timer timer = new(TimeSpan.FromMilliseconds(500))
     {
         AutoReset = false
@@ -90,13 +91,24 @@ public partial class ConfigurationFile : ConfigurationBaseCore
 
     private async Task OpenFileDialog()
     {
-        var response = await this.RustService.SelectFile(this.FileDialogTitle, this.Filter, string.IsNullOrWhiteSpace(this.internalText) ? null : this.internalText);
-        if (response.UserCancelled)
+        if (this.isFileDialogOpen)
             return;
 
-        this.timer.Stop();
-        this.internalText = response.SelectedFilePath;
-        await this.OptionChanged(response.SelectedFilePath);
+        this.isFileDialogOpen = true;
+        try
+        {
+            var response = await this.RustService.SelectFile(this.FileDialogTitle, this.Filter, string.IsNullOrWhiteSpace(this.internalText) ? null : this.internalText);
+            if (response.UserCancelled)
+                return;
+
+            this.timer.Stop();
+            this.internalText = response.SelectedFilePath;
+            await this.OptionChanged(response.SelectedFilePath);
+        }
+        finally
+        {
+            this.isFileDialogOpen = false;
+        }
     }
 
     private async Task OptionChanged(string updatedText)
diff --git a/app/MindWork AI Studio/Components/ReadFileContent.razor.cs b/app/MindWork AI Studio/Components/ReadFileContent.razor.cs
index 4a200f1f..dd2887b0 100644
--- a/app/MindWork AI Studio/Components/ReadFileContent.razor.cs	
+++ b/app/MindWork AI Studio/Components/ReadFileContent.razor.cs	
@@ -74,9 +74,10 @@ public partial class ReadFileContent : MSGComponentBase
     private string dragClass = DEFAULT_DRAG_CLASS;
     private uint numDropAreasAboveThis;
     private bool isComponentHovered;
+    private bool isFileDialogOpen;
     private bool IsCurrentTargetBusy => this.MediaTranscriptionService.GetSnapshot(this.EffectiveImportOwner) is { IsBusy: true } snapshot
                                         && snapshot.Target == this.EffectiveMediaImportTarget;
-    private bool IsUnavailable => this.Disabled || this.MediaTranscriptionService.IsBusy(this.EffectiveImportOwner);
+    private bool IsUnavailable => this.Disabled || this.isFileDialogOpen || this.MediaTranscriptionService.IsBusy(this.EffectiveImportOwner);
 
     #region Overrides of MSGComponentBase
 
@@ -217,14 +218,22 @@ public partial class ReadFileContent : MSGComponentBase
         if (this.IsUnavailable)
             return;
 
-        var selectedFile = await this.RustService.SelectFile(T("Select file to read its content"));
-        if (selectedFile.UserCancelled)
+        this.isFileDialogOpen = true;
+        try
         {
-            this.Logger.LogInformation("User cancelled the file selection");
-            return;
-        }
+            var selectedFile = await this.RustService.SelectFile(T("Select file to read its content"));
+            if (selectedFile.UserCancelled)
+            {
+                this.Logger.LogInformation("User cancelled the file selection");
+                return;
+            }
 
-        await this.LoadFileIfValid(selectedFile.SelectedFilePath);
+            await this.LoadFileIfValid(selectedFile.SelectedFilePath);
+        }
+        finally
+        {
+            this.isFileDialogOpen = false;
+        }
     }
 
     private async Task<bool> EnsurePandocAvailability()
@@ -246,6 +255,15 @@ public partial class ReadFileContent : MSGComponentBase
 
     private async Task LoadFirstValidFile(List<string> paths)
     {
+        var inaccessiblePaths = paths.Where(path => !File.Exists(path)).ToList();
+        if (inaccessiblePaths.Count > 0)
+        {
+            this.Logger.LogWarning("Could not access {Count} dropped file(s): {Paths}", inaccessiblePaths.Count, string.Join(", ", inaccessiblePaths));
+            await this.MessageBus.SendWarning(new(
+                Icons.Material.Filled.Warning,
+                this.T("Some dropped files could not be accessed. Please select them with the file chooser instead.")));
+        }
+
         foreach (var path in paths)
         {
             if (await this.LoadFileIfValid(path))
diff --git a/app/MindWork AI Studio/Components/SelectDirectory.razor b/app/MindWork AI Studio/Components/SelectDirectory.razor
index 1cf19ec4..096db371 100644
--- a/app/MindWork AI Studio/Components/SelectDirectory.razor	
+++ b/app/MindWork AI Studio/Components/SelectDirectory.razor	
@@ -13,7 +13,7 @@
         Variant="Variant.Outlined"
     />
     
-    <MudButton StartIcon="@Icons.Material.Filled.FolderOpen" Variant="Variant.Outlined" Color="Color.Primary" Disabled="this.Disabled" OnClick="@this.OpenDirectoryDialog">
+    <MudButton StartIcon="@Icons.Material.Filled.FolderOpen" Variant="Variant.Outlined" Color="Color.Primary" Disabled="@(this.Disabled || this.isDirectoryDialogOpen)" OnClick="@this.OpenDirectoryDialog">
         @T("Choose Directory")
     </MudButton>
 </MudStack>
\ No newline at end of file
diff --git a/app/MindWork AI Studio/Components/SelectDirectory.razor.cs b/app/MindWork AI Studio/Components/SelectDirectory.razor.cs
index a305f2b7..6f576435 100644
--- a/app/MindWork AI Studio/Components/SelectDirectory.razor.cs	
+++ b/app/MindWork AI Studio/Components/SelectDirectory.razor.cs	
@@ -31,6 +31,7 @@ public partial class SelectDirectory : MSGComponentBase
     protected ILogger<SelectDirectory> Logger { get; init; } = null!;
     
     private static readonly Dictionary<string, object?> SPELLCHECK_ATTRIBUTES = new();
+    private bool isDirectoryDialogOpen;
     
     #region Overrides of ComponentBase
 
@@ -51,10 +52,21 @@ public partial class SelectDirectory : MSGComponentBase
 
     private async Task OpenDirectoryDialog()
     {
-        var response = await this.RustService.SelectDirectory(this.DirectoryDialogTitle, string.IsNullOrWhiteSpace(this.Directory) ? null : this.Directory);
-        this.Logger.LogInformation($"The user selected the directory '{response.SelectedDirectory}'.");
+        if (this.isDirectoryDialogOpen)
+            return;
 
-        if (!response.UserCancelled)
-            this.InternalDirectoryChanged(response.SelectedDirectory);
+        this.isDirectoryDialogOpen = true;
+        try
+        {
+            var response = await this.RustService.SelectDirectory(this.DirectoryDialogTitle, string.IsNullOrWhiteSpace(this.Directory) ? null : this.Directory);
+            this.Logger.LogInformation("The user selected the directory '{SelectedDirectory}'.", response.SelectedDirectory);
+
+            if (!response.UserCancelled)
+                this.InternalDirectoryChanged(response.SelectedDirectory);
+        }
+        finally
+        {
+            this.isDirectoryDialogOpen = false;
+        }
     }
 }
\ No newline at end of file
diff --git a/app/MindWork AI Studio/Components/SelectFile.razor b/app/MindWork AI Studio/Components/SelectFile.razor
index de3971e5..726965fd 100644
--- a/app/MindWork AI Studio/Components/SelectFile.razor	
+++ b/app/MindWork AI Studio/Components/SelectFile.razor	
@@ -13,7 +13,7 @@
         Variant="Variant.Outlined"
     />
     
-    <MudButton StartIcon="@Icons.Material.Filled.FolderOpen" Variant="Variant.Outlined" Color="Color.Primary" Disabled="this.Disabled" OnClick="@this.OpenFileDialog">
+    <MudButton StartIcon="@Icons.Material.Filled.FolderOpen" Variant="Variant.Outlined" Color="Color.Primary" Disabled="@(this.Disabled || this.isFileDialogOpen)" OnClick="@this.OpenFileDialog">
         @T("Choose File")
     </MudButton>
 </MudStack>
\ No newline at end of file
diff --git a/app/MindWork AI Studio/Components/SelectFile.razor.cs b/app/MindWork AI Studio/Components/SelectFile.razor.cs
index 91c7a667..de1f89a3 100644
--- a/app/MindWork AI Studio/Components/SelectFile.razor.cs	
+++ b/app/MindWork AI Studio/Components/SelectFile.razor.cs	
@@ -35,6 +35,7 @@ public partial class SelectFile : MSGComponentBase
     protected ILogger<SelectFile> Logger { get; init; } = null!;
     
     private static readonly Dictionary<string, object?> SPELLCHECK_ATTRIBUTES = new();
+    private bool isFileDialogOpen;
     
     #region Overrides of ComponentBase
 
@@ -55,10 +56,21 @@ public partial class SelectFile : MSGComponentBase
 
     private async Task OpenFileDialog()
     {
-        var response = await this.RustService.SelectFile(this.FileDialogTitle, this.Filter, string.IsNullOrWhiteSpace(this.File) ? null : this.File);
-        this.Logger.LogInformation($"The user selected the file '{response.SelectedFilePath}'.");
+        if (this.isFileDialogOpen)
+            return;
 
-        if (!response.UserCancelled)
-            this.InternalFileChanged(response.SelectedFilePath);
+        this.isFileDialogOpen = true;
+        try
+        {
+            var response = await this.RustService.SelectFile(this.FileDialogTitle, this.Filter, string.IsNullOrWhiteSpace(this.File) ? null : this.File);
+            this.Logger.LogInformation("The user selected the file '{SelectedFilePath}'.", response.SelectedFilePath);
+
+            if (!response.UserCancelled)
+                this.InternalFileChanged(response.SelectedFilePath);
+        }
+        finally
+        {
+            this.isFileDialogOpen = false;
+        }
     }
 }
\ No newline at end of file
diff --git a/app/MindWork AI Studio/Dialogs/Settings/SettingsDialogChatTemplate.razor b/app/MindWork AI Studio/Dialogs/Settings/SettingsDialogChatTemplate.razor
index 19680575..69483493 100644
--- a/app/MindWork AI Studio/Dialogs/Settings/SettingsDialogChatTemplate.razor	
+++ b/app/MindWork AI Studio/Dialogs/Settings/SettingsDialogChatTemplate.razor	
@@ -63,7 +63,7 @@
                                             <MudMenuItem Icon="@Icons.Material.Filled.Link" OnClick="@(() => this.ExportChatTemplateWithSharedAttachmentPaths(context))">
                                                 @T("Use shared attachment paths")
                                             </MudMenuItem>
-                                            <MudMenuItem Icon="@Icons.Material.Filled.Folder" OnClick="@(() => this.ExportChatTemplateWithPackagedAttachments(context))">
+                                            <MudMenuItem Icon="@Icons.Material.Filled.Folder" Disabled="@this.isPluginDirectoryDialogOpen" OnClick="@(() => this.ExportChatTemplateWithPackagedAttachments(context))">
                                                 @T("Copy attachments into plugin")
                                             </MudMenuItem>
                                         </MudMenu>
diff --git a/app/MindWork AI Studio/Dialogs/Settings/SettingsDialogChatTemplate.razor.cs b/app/MindWork AI Studio/Dialogs/Settings/SettingsDialogChatTemplate.razor.cs
index 54a2f631..d6dbb2da 100644
--- a/app/MindWork AI Studio/Dialogs/Settings/SettingsDialogChatTemplate.razor.cs	
+++ b/app/MindWork AI Studio/Dialogs/Settings/SettingsDialogChatTemplate.razor.cs	
@@ -6,6 +6,8 @@ namespace AIStudio.Dialogs.Settings;
 
 public partial class SettingsDialogChatTemplate : SettingsDialogBase
 {
+    private bool isPluginDirectoryDialogOpen;
+
     [Parameter]
     public bool CreateTemplateFromExistingChatThread { get; set; }
 
@@ -131,7 +133,7 @@ public partial class SettingsDialogChatTemplate : SettingsDialogBase
 
     private async Task ExportChatTemplateWithPackagedAttachments(ChatTemplate chatTemplate)
     {
-        if (!this.SettingsManager.ConfigurationData.App.ShowAdminSettings)
+        if (!this.SettingsManager.ConfigurationData.App.ShowAdminSettings || this.isPluginDirectoryDialogOpen)
             return;
 
         if (chatTemplate == ChatTemplate.NO_CHAT_TEMPLATE || chatTemplate.IsEnterpriseConfiguration)
@@ -143,11 +145,19 @@ public partial class SettingsDialogChatTemplate : SettingsDialogBase
             return;
         }
 
-        var pluginDirectoryResponse = await this.RustService.SelectDirectory(T("Select configuration plugin folder"));
-        if (pluginDirectoryResponse.UserCancelled)
-            return;
+        this.isPluginDirectoryDialogOpen = true;
+        try
+        {
+            var pluginDirectoryResponse = await this.RustService.SelectDirectory(T("Select configuration plugin folder"));
+            if (pluginDirectoryResponse.UserCancelled)
+                return;
 
-        await this.CopyPackagedChatTemplateLuaToClipboard(chatTemplate, pluginDirectoryResponse.SelectedDirectory);
+            await this.CopyPackagedChatTemplateLuaToClipboard(chatTemplate, pluginDirectoryResponse.SelectedDirectory);
+        }
+        finally
+        {
+            this.isPluginDirectoryDialogOpen = false;
+        }
     }
 
     private async Task CopyChatTemplateLuaToClipboard(ChatTemplate chatTemplate)
diff --git a/app/MindWork AI Studio/Tools/Services/RustService.FileSystem.cs b/app/MindWork AI Studio/Tools/Services/RustService.FileSystem.cs
index 89fef1f4..81a64e8c 100644
--- a/app/MindWork AI Studio/Tools/Services/RustService.FileSystem.cs	
+++ b/app/MindWork AI Studio/Tools/Services/RustService.FileSystem.cs	
@@ -1,3 +1,5 @@
+using System.Diagnostics;
+
 using AIStudio.Tools.Rust;
 
 namespace AIStudio.Tools.Services;
@@ -6,56 +8,90 @@ public sealed partial class RustService
 {
     public async Task<DirectorySelectionResponse> SelectDirectory(string title, string? initialDirectory = null)
     {
-        var encodedTitle = Uri.EscapeDataString(title);
-        var result = initialDirectory is null
-            ? await this.http.PostAsync($"/select/directory?title={encodedTitle}", null)
-            : await this.http.PostAsJsonAsync($"/select/directory?title={encodedTitle}", new PreviousDirectory(initialDirectory), this.jsonRustSerializerOptions);
-        
-        if (!result.IsSuccessStatusCode)
+        return await this.RunFileDialog(
+            "select directory",
+            async () =>
+            {
+                var encodedTitle = Uri.EscapeDataString(title);
+                var result = initialDirectory is null
+                    ? await this.http.PostAsync($"/select/directory?title={encodedTitle}", null)
+                    : await this.http.PostAsJsonAsync($"/select/directory?title={encodedTitle}", new PreviousDirectory(initialDirectory), this.jsonRustSerializerOptions);
+
+                if (result.IsSuccessStatusCode)
+                    return await result.Content.ReadFromJsonAsync<DirectorySelectionResponse>(this.jsonRustSerializerOptions);
+
+                this.logger!.LogError("Failed to select a directory: '{StatusCode}'", result.StatusCode);
+                return new DirectorySelectionResponse(true, string.Empty);
+            },
+            new DirectorySelectionResponse(true, string.Empty));
+    }
+
+    private async Task<T> RunFileDialog<T>(string operation, Func<Task<T>> showDialog, T cancelledResult)
+    {
+        if (!await this.fileDialogLock.WaitAsync(0))
         {
-            this.logger!.LogError($"Failed to select a directory: '{result.StatusCode}'");
-            return new DirectorySelectionResponse(true, string.Empty);
+            this.logger!.LogInformation("Ignored duplicate file dialog request for '{Operation}'.", operation);
+            return cancelledResult;
+        }
+
+        var stopwatch = Stopwatch.StartNew();
+        this.logger!.LogInformation("Opening file dialog for '{Operation}'.", operation);
+        try
+        {
+            return await showDialog();
+        }
+        finally
+        {
+            stopwatch.Stop();
+            this.fileDialogLock.Release();
+            this.logger!.LogInformation("File dialog for '{Operation}' completed after {ElapsedMilliseconds} ms.", operation, stopwatch.ElapsedMilliseconds);
         }
-        
-        return await result.Content.ReadFromJsonAsync<DirectorySelectionResponse>(this.jsonRustSerializerOptions);
     }
     
     public async Task<FileSelectionResponse> SelectFile(string title, FileTypeFilter[]? filter = null, string? initialFile = null)
     {
-        var payload = new SelectFileOptions
-        {
-            Title = title,
-            PreviousFile = initialFile is null ? null : new (initialFile),
-            Filter = FileTypes.AsOneFileType(filter)
-        };
+        return await this.RunFileDialog(
+            "select file",
+            async () =>
+            {
+                var payload = new SelectFileOptions
+                {
+                    Title = title,
+                    PreviousFile = initialFile is null ? null : new (initialFile),
+                    Filter = FileTypes.AsOneFileType(filter)
+                };
 
-        var result = await this.http.PostAsJsonAsync("/select/file", payload, this.jsonRustSerializerOptions);
-        if (!result.IsSuccessStatusCode)
-        {
-            this.logger!.LogError($"Failed to select a file: '{result.StatusCode}'");
-            return new FileSelectionResponse(true, string.Empty);
-        }
+                var result = await this.http.PostAsJsonAsync("/select/file", payload, this.jsonRustSerializerOptions);
+                if (result.IsSuccessStatusCode)
+                    return await result.Content.ReadFromJsonAsync<FileSelectionResponse>(this.jsonRustSerializerOptions);
 
-        return await result.Content.ReadFromJsonAsync<FileSelectionResponse>(this.jsonRustSerializerOptions);
+                this.logger!.LogError("Failed to select a file: '{StatusCode}'", result.StatusCode);
+                return new FileSelectionResponse(true, string.Empty);
+            },
+            new FileSelectionResponse(true, string.Empty));
     }
 
     public async Task<FilesSelectionResponse> SelectFiles(string title, FileTypeFilter[]? filter = null, string? initialFile = null)
     {
-        var payload = new SelectFileOptions
-        {
-            Title = title,
-            PreviousFile = initialFile is null ? null : new (initialFile),
-            Filter = FileTypes.AsOneFileType(filter)
-        };
+        return await this.RunFileDialog(
+            "select files",
+            async () =>
+            {
+                var payload = new SelectFileOptions
+                {
+                    Title = title,
+                    PreviousFile = initialFile is null ? null : new (initialFile),
+                    Filter = FileTypes.AsOneFileType(filter)
+                };
 
-        var result = await this.http.PostAsJsonAsync("/select/files", payload, this.jsonRustSerializerOptions);
-        if (!result.IsSuccessStatusCode)
-        {
-            this.logger!.LogError($"Failed to select files: '{result.StatusCode}'");
-            return new FilesSelectionResponse(true, Array.Empty<string>());
-        }
+                var result = await this.http.PostAsJsonAsync("/select/files", payload, this.jsonRustSerializerOptions);
+                if (result.IsSuccessStatusCode)
+                    return await result.Content.ReadFromJsonAsync<FilesSelectionResponse>(this.jsonRustSerializerOptions);
 
-        return await result.Content.ReadFromJsonAsync<FilesSelectionResponse>(this.jsonRustSerializerOptions);
+                this.logger!.LogError("Failed to select files: '{StatusCode}'", result.StatusCode);
+                return new FilesSelectionResponse(true, Array.Empty<string>());
+            },
+            new FilesSelectionResponse(true, Array.Empty<string>()));
     }
 
     /// <summary>
@@ -68,21 +104,25 @@ public sealed partial class RustService
     /// operation and whether the select operation was successful.</returns>
     public async Task<FileSaveResponse> SaveFile(string title, FileTypeFilter[]? filter = null, string? initialFile = null)
     {
-        var payload = new SaveFileOptions
-        {
-            Title = title,
-            PreviousFile = initialFile is null ? null : new (initialFile),
-            Filter = FileTypes.AsOneFileType(filter)
-        };
-        
-        var result = await this.http.PostAsJsonAsync("/save/file", payload, this.jsonRustSerializerOptions);
-        if (!result.IsSuccessStatusCode)
-        {
-            this.logger!.LogError($"Failed to select a file for writing operation '{result.StatusCode}'");
-            return new FileSaveResponse(true, string.Empty);
-        }
-        
-        return await result.Content.ReadFromJsonAsync<FileSaveResponse>(this.jsonRustSerializerOptions);
+        return await this.RunFileDialog(
+            "save file",
+            async () =>
+            {
+                var payload = new SaveFileOptions
+                {
+                    Title = title,
+                    PreviousFile = initialFile is null ? null : new (initialFile),
+                    Filter = FileTypes.AsOneFileType(filter)
+                };
+
+                var result = await this.http.PostAsJsonAsync("/save/file", payload, this.jsonRustSerializerOptions);
+                if (result.IsSuccessStatusCode)
+                    return await result.Content.ReadFromJsonAsync<FileSaveResponse>(this.jsonRustSerializerOptions);
+
+                this.logger!.LogError("Failed to select a file for writing operation: '{StatusCode}'", result.StatusCode);
+                return new FileSaveResponse(true, string.Empty);
+            },
+            new FileSaveResponse(true, string.Empty));
     }
 
     public async Task<OpenPathResponse> TryOpenPathInRuntimeFileManager(string path)
diff --git a/app/MindWork AI Studio/Tools/Services/RustService.cs b/app/MindWork AI Studio/Tools/Services/RustService.cs
index 6bcef10c..6e979bb1 100644
--- a/app/MindWork AI Studio/Tools/Services/RustService.cs	
+++ b/app/MindWork AI Studio/Tools/Services/RustService.cs	
@@ -17,6 +17,7 @@ public sealed partial class RustService : BackgroundService
     private static string TB(string fallbackEN) => I18N.I.T(fallbackEN, typeof(RustService).Namespace, nameof(RustService));
     
     private readonly HttpClient http;
+    private readonly SemaphoreSlim fileDialogLock = new(1, 1);
     private readonly SemaphoreSlim userLanguageLock = new(1, 1);
     private readonly SemaphoreSlim userNameLock = new(1, 1);
 
diff --git a/app/MindWork AI Studio/wwwroot/changelog/v26.7.3.md b/app/MindWork AI Studio/wwwroot/changelog/v26.7.3.md
index f17a9a46..66682a54 100644
--- a/app/MindWork AI Studio/wwwroot/changelog/v26.7.3.md	
+++ b/app/MindWork AI Studio/wwwroot/changelog/v26.7.3.md	
@@ -8,6 +8,7 @@
 - Improved the "My Tasks Assistant": you can now provide one or more documents in addition to text or use documents alone when asking to identify tasks.
 - Improved update guidance for Flatpak installations and added an enterprise option that lets organizations manage updates entirely through their IT department.
 - Improved secure API-key storage diagnostics on Linux. AI Studio now provides specific guidance when the default password collection is missing or locked, a password-manager prompt is dismissed, or no compatible Secret Service is available.
+- Improved the file dialogs to prevent opening multiple times when you click "Open" or "Save" multiple times in a row.
 - Fixed an issue that could leave AI Studio unresponsive after waking the computer from sleep. Yes, we know this was an annoying bug, and we apologize for the inconvenience.
 - Fixed connections to internal HTTPS services and enterprise configuration servers that use organization-provided root certificates on Linux.
 - Fixed enterprise configuration plugins from Windows-created ZIP files may not load correctly on Linux when the ZIP contained plugin files inside a folder.