diff --git a/app/MindWork AI Studio/Plugins/configuration/plugin.lua b/app/MindWork AI Studio/Plugins/configuration/plugin.lua
index 77797c51..2debb704 100644
--- a/app/MindWork AI Studio/Plugins/configuration/plugin.lua	
+++ b/app/MindWork AI Studio/Plugins/configuration/plugin.lua	
@@ -3,6 +3,7 @@ require("icon")
 -- ------
 -- This is an example of a configuration plugin. Please replace
 -- the placeholders and assign a valid ID.
+-- IDs should be lower-case.
 -- ------
 
 -- The ID for this plugin:
@@ -97,9 +98,7 @@ CONFIG["SETTINGS"] = {}
 
 -- Configure the preselected profile.
 -- It must be one of the profile IDs defined in CONFIG["PROFILES"].
--- Be aware that the ID must be using the same casing as defined in the profile.
--- When the ID is using upper case letters, but using lower case letters in this
--- setting, the preselection will not work.
+-- Using an empty string ("") will lock the preselected profile selection, even though no valid preselected profile is found.
 -- CONFIG["SETTINGS"]["DataApp.PreselectedProfile"] = "00000000-0000-0000-0000-000000000000"
 
 -- Example chat templates for this configuration:
diff --git a/app/MindWork AI Studio/Settings/SettingsManager.cs b/app/MindWork AI Studio/Settings/SettingsManager.cs
index 7bab00cb..04bce7b3 100644
--- a/app/MindWork AI Studio/Settings/SettingsManager.cs	
+++ b/app/MindWork AI Studio/Settings/SettingsManager.cs	
@@ -263,7 +263,7 @@ public sealed class SettingsManager
         if (preselection != Profile.NO_PROFILE)
             return preselection;
         
-        preselection = this.ConfigurationData.Profiles.FirstOrDefault(x => x.Id == this.ConfigurationData.App.PreselectedProfile);
+        preselection = this.ConfigurationData.Profiles.FirstOrDefault(x => x.Id.Equals(this.ConfigurationData.App.PreselectedProfile, StringComparison.InvariantCultureIgnoreCase));
         return preselection ?? Profile.NO_PROFILE;
     }
     
@@ -273,7 +273,7 @@ public sealed class SettingsManager
         if (preselection != ChatTemplate.NO_CHAT_TEMPLATE)
             return preselection;
         
-        preselection = this.ConfigurationData.ChatTemplates.FirstOrDefault(x => x.Id == this.ConfigurationData.App.PreselectedChatTemplate);
+        preselection = this.ConfigurationData.ChatTemplates.FirstOrDefault(x => x.Id.Equals(this.ConfigurationData.App.PreselectedChatTemplate, StringComparison.InvariantCultureIgnoreCase));
         return preselection ?? ChatTemplate.NO_CHAT_TEMPLATE;
     }