Thanks for the suggestions. I've tried them all and none work. I have this problem on any/all songs I load, even one I created in RB as Noel suggested. Toggling Cntl T back and forth does not clear the issue and I even reloaded/reinstalled the latest update. I'm running the full-up fully updated 2018 audiophile version (BB in C:, Real Drums/Tracks in D:).

Next (probably tomorrow) I'll reinstall and let you know. I'm confident this will fix the problem and I still suspect the root cause somehow is something I've done.

I sincerely appreciate the time, thought and efforts you guys put behind the suggestions.