TMX import failure + TM problems

Hi community,

today I encouter problems with Studio 2021. After finishing a big translation, during the work on which I installed Service Release 2 sometimes last week, I wanted to start a new translation and faced 2 problems:

1/ When trying to import TMXs in a newly-created TM, there is an error saying: "Import failed. The file could not be processed". This is the first time I have such a  problem in years and I always create a project memory and import files there .

2/ When trying at least to pre-translate files using my file-based memories, I have a problem with my personal memory I have been udating for years within all translations. There is this error: "An error has occured when searching the Translation Memory. The TM may contain invalid Translation Units."

I am not an expert, but for many hours I´ve been trying many solutions the community suggests (TMrepair tool, reinstall SR2, trados repair, reseting trados studio basic settings), but it still does not work.

Can you PLEASE help me?

Thanks a lot,

Katarina