Corrupt Mac .AUP3 file

That can be a problem because the latest one is 3.4.2. The last reasonably stable version was 3.3.3. The two in the middle were not paragons of virtue.

When I was in active production, I accidentally avoided all the Project kerfuffles by not understanding or trusting Projects. I exported all my live performances as WAV on the spot.
~

There is a Recovery Utility, but it doesn’t do anything for Mac users.

Koz