I used to get this when I used a bunch of Real Tracks on my old machine. Biab has a "fast generation" function and sometimes an older PC can't handle it. That means Biab will start playing your song faster than normal because it's still generating the song in the background. It's never an issue if you just let the song play but sometimes when I was testing styles or whatever, I would listen to just a few bars, hit stop and maybe put the mouse in the middle of the 2nd ending and hit play. Do that before it's finished generating and Biab locks up, you think it's crashed, try to close it and get all kinds of access violations and error messages.

Try setting up a song with 1 Real Track, then 2, then 3, play with the generation times and see if that's it.

Bob

Biab/RB latest build, Win 11 Pro, Ryzen 5 5600 G, 512 Gig SSD, 16 Gigs Ram, Steinberg UR22 MkII, Roland Sonic Cell, Kurzweil PC3, Hammond SK1, Korg PA3XPro, Garritan JABB, Hypercanvas, Sampletank 3, more.