After installing the Trados Studio 2022 CU1 update (version 17.0.1.11652), when trying to confirm a segment in any project, the following error occurs: 

Object reference not set to an instance of an object.
 

<SDLErrorDetails time="29.07.2022 15:11:27">
  <ErrorMessage>Object reference not set to an instance of an object.</ErrorMessage>
  <Exception>
    <Type>System.NullReferenceException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</Type>
    <HelpLink />
    <Source>Multilingual.Excel.FileType</Source>
    <HResult>-2147467261</HResult>
    <StackTrace><![CDATA[   bei Multilingual.Excel.FileType.Verifier.MultilingualExcelVerifier.Initialize(IDocumentProperties documentInfo)
   bei Sdl.FileTypeSupport.Framework.Core.Utilities.BilingualApi.BilingualContentHandlerAdapter.Initialize(IDocumentProperties documentInfo)
   bei Sdl.FileTypeSupport.Framework.Core.Utilities.BilingualApi.BilingualContentHandlerAdapter.Initialize(IDocumentProperties documentInfo)
   bei Sdl.FileTypeSupport.Framework.Core.Utilities.BilingualApi.BilingualContentHandlerAdapter.Initialize(IDocumentProperties documentInfo)
   bei Sdl.FileTypeSupport.Framework.Core.Utilities.BilingualApi.BilingualContentHandlerAdapter.Initialize(IDocumentProperties documentInfo)

When confirming the segment using the CTRL+Enter shortcut combination, Trados Studio crashes without an error message.

*Note: In some cases, the below error message is thrown when trying to perform the quality check (F8).

The document could not be validated: object reference was not set to an instance of an object.


 

Uninstall the current version of the Multilingual Excel FileType and install the latest version from the AppStore. 





 

The issue is caused by an outdated version of the Multilingual Excel FileType plug-in.