Tantacrul broke all my .aup projects

Hey.
I have a terrible problem with ALL my old Audacity projects I created back in Audacity 1-2 in 2012-2018. I want to be able to work on them in the new Audacity 3 to be able to utilize the new real-time effects. However, when opened in Audacity 3 (checked a few newer versions) all the tracks get terribly out of sync. We’re talking “all over the place” out of sync… When I open the same files in older Audacity 2 (newest release) all works well.
I can track all the problems to the "redesign” of Audacity and Tantacrul taking over. Come on, you can’t claim “backward compatibility” and have such behavior. Literaly ALL my projects are broken now.

Is there perhaps a way to fix the problem on my side? IDK, like a “legacy” toggle somewhere that I need to check, a compatibility mode or some .DLL file edit? If not, please kindly fix the issue.

Hmm, as I said I already have the newest release of Audacity 2 installed. Thought I would like to benefit from the new Audacity 3 functionality. Like - that’s the whole point of the new release - to be able to use it, which in the current state I cannot.