When using Trados Studio 2021 SR2 (in this case version 16.2.9.9198) with one of the MultiTrans Plug-Ins, the following error occurs when trying to access the MultiTrans Integration or when trying to create a project or translate a single doucment with the MultiTrans Terminology or Translation provider plug-ins:
Could not load file or assembly 'MahApps.Metro, PublicKeyToken=f4fb5a3c4d1e5b4f' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)