I just upgraded from 2018 -> 2021 (Windows 10). Kicking the tires on some of the new features (and some old ones that I never tried in 2018). One feature I'm trying (or at least acknowledging) for the first time is the sforzando Hi-Q instruments. I may have been using these in 2018 without knowing it... but for some reason now in 2021 Hi-Q instruments are silent and I get the subject line error in the lower right corner when I try to select other Hi-Q instruments.

I've tried several permutations of midi driver settings and no combination of options seems to work.

Any suggestions for further troubleshooting are appreciated.