I have already submitted a bug report for this, but seeing as I just lost over an hour of work as I stupidly didn’t save anything for ages, here’s a heads up:
Just found if you open MIDI monitor and send it Poly Aftertouch messages, Hapax just hangs until a power cycle.
yeah, I think I made that comment on my eurorack video…
generally the hapax is stable, and that has caught me out … as there are some bugs still, so for now good practice to save regularly.