error message: “Unexpected exception when initializing view part Fragment Matches”

When trying to revert to a sdlxliff- document (in Trados 2019) which I have been working on before, I receive the following error message: “Unexpected exception when initializing view part Fragment Matches”.

I have tried various solutions and workarounds I found under “Community”, but none of them solved the problem.

I would very much appreciate your help!

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