I have a similar issue at times. will generate a few tracks, and maybe do a tempo change and regenerate a bunch of them, and some will act up. I look at them and say it is a stereo track, near the end of the track, maybe the last few bars, one half will have no color to it for a stretch, and the other half is still yellow. Some mono tracks will have the color stop at a point, but the wave form is still there. It all seems to play, but kind of glitchy.

HP Win 11 12 gig ram, Mac mini with 16 gig of ram, BiaB 2025, Realband, Reaper 7, Harrison Mixbus 9 32c , Melodyne 5 editor, Presonus Audiobox 1818VSL, Presonus control app.