Same exact issue. Installed BIAB a few days ago on Mac (13.0.1)--also ran the updater today when I ran into this problem.
Daw Plugin 2022 v4.8.7 fails to generate--tried both stand alone and in DAW. Hitting "generate" the track bar goes for a bit then stops with nothing generated. Get the "Generation is complete!" dialogue but no tracks are available.
It does generate files for each of the instruments in the bbplugin/savedtracks/yyyy-mm-dd, hh-mm-ss/ directories--but right now it seems that is just wasted disk space.