OP-1 freeze randomly when receiving MIDI notes (with velocity)

All is in the title. Anybody have an idea on how to get rid of that? It happens time to time, I have no idea why or what special combo I do to make it freeze…



I’m having a similar (not the same) issue but just found my own software was sending midi notes outside of the acceptable range (1-127). already reported to them. this seems a similar but different issue