Track Mutes After Transition Timeline in Horizontal Music Event (Possible Bug?)

I recently showed my students how to create a horizontal music event in FMOD, where multiple level tracks are placed next to each other on the timeline and switched using a labeled parameter with magnet regions. Each magnet region uses a 2-bar transition timeline, where the source track fades out over 2 bars before the destination track starts.

However, some students encountered an issue where, after the transition, the destination track is suddenly muted. The audio track itself remains at 0 dB, but no sound plays. I was able to fix it temporarily by extending the destination track one bar earlier into the transition timeline, but technically it should work without that adjustment.

Is this a known bug, or does anyone know a proper fix for this behavior?

Thanks in advance.