An item with the same key has already been added - Trados Studio R2- 241/01/24

Question

Hi! 
 I've been having problems with Studio R2 since December last year after I downloaded some plugins. After that, whenever I opened Studio, it would give me an error message. This was reported, but never got round to sort it out because I decided to upgrade my computer and then the holiday period came. 
 Now, I'm installing Studio again in this new computer, and it gives me this error message. 
 
 An this is the error file. 
 
 I remember that my problem I had in December was that the folder Studio 17 was not showing on AppData>Roaming>Trados>Trados Studio>Studio 17. Only Studio showed, which I believe it's for Studio 21, correct Paul ? Ok now that it shows, I have two folders: 
 
 Foder 17 has all the plugins, packages and unpacked. 
 I suspect one or more of these may be causing the problem, but do I know? 
 Now, I go to Studio 17>logs, and I can see a bunch of txt files. This is the latest from today:

Fullscreen 
 Trados Studio_34636.log 
 Download 
 
 INFO [2024-01-24 09:36:20,268] TradosStudio.PushNotificationProvider.SignalRClient - Initializing client
INFO [2024-01-24 09:36:25,580] Sdl.Desktop.Platform.Implementation.Studio - Starting application service.
WARN [2024-01-24 09:36:25,594] Sdl.BestMatchServiceStudioIntegration.Common.Account.Credential.SecureCredentialFile - Error reading credentials file
System.FormatException: The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters. 
 at System.Convert.FromBase64_ComputeResultLength(Char* inputPtr, Int32 inputLength)
 at System.Convert.FromBase64CharPtr(Char* inputPtr, Int32 inputLength)
 at System.Convert.FromBase64String(String s)
 at Sdl.Desktop.Platform.Encryption.AesCbcCipherText.FromBase64String(String data)
 at Sdl.Desktop.Platform.Encryption.EncryptionProviderNet4.Decrypt(String cipherText)
 at Sdl.BestMatchServiceStudioIntegration.Common.Account.Credential.SecureCredentialFile.ReadFileData()
 at Sdl.BestMatchServiceStudioIntegration.Common.Account.Credential.SecureCredentialFile.Read()
INFO [2024-01-24 09:36:25,596] Sdl.TranslationStudio.LanguageCloud.Startup.LanguageCloudLogin - Language Cloud login failed.
INFO [2024-01-24 09:36:25,652] Sdl.TranslationStudio.ProjectManagement.AutoDeleteOnStartup - Deleting temporary files
FATAL [2024-01-24 09:36:26,963] Sdl.Desktop.Platform.UnhandledException - An item with the same key has already been added.
System.ArgumentException: An item with the same key has already been added.
 at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
 at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
 at System.Collections.Generic.Dictionary`2.Add(TKey key, TValue value)
 at Sdl.Desktop.Platform.Implementation.StudioWindow.Init(IEventAggregator eventAggregator)
 at Sdl.Desktop.Platform.Implementation.Studio.CreateWindowInternal(Boolean setActive, IEventAggregator eventAggregator)
 at Sdl.Desktop.Platform.Implementation.Studio.Run(ISplashScreen splashScreen, IPluginLoaderService pluginLoaderService, ICommandLineParsingService commandLineParsingService, IUserSettingsService userSettingsService, IEnumerable`1 startUpActions, ILicensingService licensingService)
 at Sdl.TranslationStudio.Application.Launcher.RunApplication()
INFO [2024-01-24 09:36:26,968] Sdl.Desktop.Platform.UnhandledException - An item with the same key has already been added.#ProcessName=SDLTradosStudio#PhysicalMemorySize=182874112#VirtualMemorySize=95293440#ThreadCount=28#HandleCount=1356#GdiHandleCount=73#UserHandleCount=54#TotalProcessorTime=00:00:04.1562500

Any idea what's going on? My IT skills seem to be quite limited now . 
 Many thanks for your support! 
 Carina

Paul · Answer

Carina Balbo 
 A bit of a hallucinogenic response I think! 
 I suggest you reset. I don't see an obvious problem with a plugins so perhaps go a bit wider. To do this just close Trados Studio and then rename this folder: 
 c:\Users\%username%\AppData\Roaming\Trados\Trados Studio\ 
 to c:\Users\%username%\AppData\Roaming\Trados\Trados Studio_old\ 
 If you can't find this folder then you need to unhide your hidden files/folders: 
 Then restart Trados Studio and see if that helped.

Paul · Answer

Carina Balbo ok - I think this is probably related to your profile somehow. But to make sure I have logged a support case on your behalf. We do prioritise customers who have a support contract so please keep in mind it could take up to 48 hours, especially over a weekend, but rest assured we will contact you as soon as we can. You will be contacted at the email address used for this Community. Support Case Id : 00835266 .

Trados Studio > 1. Trados Studio

An item with the same key has already been added - Trados Studio R2- 241/01/24