An item with the same key has already been added. Sdl.ProjectApi.ProjectApiException, Sdl.ProjectApi, Version=15.1.0.0, Culture=neutral, PublicKeyToken=c28cdb26c445c888 -2146233088 SDL Trados Studio 15.0.0.0 15.2.8.3007 Microsoft Windows 10 Pro NULL 1040 1252 VESPA\Vespa 4.0.30319.42000 VESPA True 8260788 MB