When trying to upgrade my translation memories, I get an error message saying it couldn't create the TM.

I tried repairing Trados Studio and resetting to Standard View, but it doesn't help.

The problem occurs also when trying to merge older TMs into one TM per language.

Does anybody know a workaround for this?

Complete error message:

<SDLErrorDetails time="07.09.2019 10:56:25">
  <ErrorMessage>Das Ausgabe-Translation Memory kann nicht geöffnet werden, weil es nicht angelegt werden konnte.</ErrorMessage>
  <Exception>
    <Type>Sdl.LanguagePlatform.Core.LanguagePlatformException, Sdl.LanguagePlatform.Core, Version=1.6.0.0, Culture=neutral, PublicKeyToken=c28cdb26c445c888</Type>
    <HelpLink />
    <Source>Sdl.LanguagePlatform.TranslationMemoryApi</Source>
    <HResult>-2146233088</HResult>
    <StackTrace><![CDATA[   bei Sdl.LanguagePlatform.TranslationMemoryApi.FileBasedTranslationMemoryLanguageDirection.GetTranslationUnitsWithContextContent(RegularIterator& iterator)
   bei Sdl.LanguagePlatform.TranslationMemoryApi.TranslationMemoryLanguageDirectionImportExport.GetTranslationUnits(RegularIterator& iter)
   bei Sdl.Core.TM.ImportExport.Exporter.Export(IExportOrigin exportOrigin, TMXWriter writer)
   bei Sdl.Core.TM.ImportExport.Exporter.Export(IExportOrigin exportOrigin, String fileName, Boolean overwriteExisting)
   bei Sdl.LanguagePlatform.TranslationMemoryApi.TranslationMemoryExporter.Export(String fileName, Boolean overwriteExisting)
   bei Sdl.LanguagePlatform.TranslationMemoryMigrationApi.Implementation.TMExporterWrapper.Export()
   bei Sdl.LanguagePlatform.TranslationMemoryMigrationApi.Implementation.InputTranslationMemory.ExportTmxFile(EventHandler`1 progressEventHandler)
   bei Sdl.TranslationStudio.TranslationMemoryMigration.UI.Jobs.InputTranslationMemoryExportJobRequest.Execute(IJobExecutionContext context)
   bei Sdl.Desktop.Platform.Implementation.Services.Job.<_worker_DoWork>b__46_0()
   bei Sdl.Desktop.Platform.Implementation.Services.Log.Resources(Object message, Action action)
   bei Sdl.Desktop.Platform.Implementation.Services.Job._worker_DoWork(Object sender, DoWorkEventArgs e)
   bei System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e)
   bei System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)]]></StackTrace>
  </Exception>
  <Environment>
    <ProductName>SDL Trados Studio</ProductName>
    <ProductVersion>14.0.0.0</ProductVersion>
    <EntryAssemblyFileVersion>14.1.10017.54688</EntryAssemblyFileVersion>
    <OperatingSystem>Microsoft Windows 10 Pro</OperatingSystem>
    <ServicePack>NULL</ServicePack>
    <OperatingSystemLanguage>1031</OperatingSystemLanguage>
    <CodePage>1252</CodePage>
  
    <DotNetFrameWork>4.0.30319.42000</DotNetFrameWork>
    <ComputerName>DESKTOP-U9FRMP4</ComputerName>
    <ConnectedToNetwork>True</ConnectedToNetwork>
    <PhysicalMemory>16725280 MB</PhysicalMemory>
  </Environment>
</SDLErrorDetails>