Thanks AudioTrack but I've already taken the standard actions, at least everything I've learned to do since the DOS version of BIAB. Some have been performed multiple times including RTFS, most current updates all applied successfully, styles list rebuilt (fast and slow) several times, settings double/triple checked, etc. Everything seems to check out.

After several exchanges with support, the issue has been escalated internally to development. Interestingly, I don't get the warning when running the song from the style picker only when returning to the chord chart view and then generating. Kind of weird.

So far I haven't experienced the issue with any other style. The only thing I haven't done is a full manual of RT 362 but I'm hesitant to change the system while development is working with a known state.

I guess I'll wait for what support finds.

Cheers!