Cubase stuck on opening projects

Ever since I upgraded to the M1max macbook pro, if I don’t start Cubase 12 in safe mode and choose to delete the program preferences (Using Rosetta & latest version still doing it), opening up a session will take forever, sometimes 20mn+ , and 95% of the time just stays frozen forever on the loading window… All my sessions used to open in less than 30s before. And it’s not a specific plugin that creates the problem because it never freezes on the same track no matter which plugin is on it.

If there is no plugins on the session it works fine.

It this a known issue and is there a fix?

Thanks so much

Anyone with the same issue?