You definitely can get stuck notes. If using a DAW. I hit there panic button, it sends out a note reset, to every note, every midi channel.
You can sometimes reset a note, if you use your elbows and hit as many notes at once as possible.. Short of that, your need to re-power Genos (unless there is something I am missing.
I don't think it's a style issue, it's when any instrument receives a note on command, but not a note off. Midi processors can only handle so many events on one midi clock count. Judging from using my DAW..
So if you hit something on Genos or from your DAW and it sends out huge amounts of sysex commands, CC events. most likely Genos (or any midi hardware) is not gonna have time to recognize them all. note offs, even final pitchblende commands, are left floating in wrong state.
Most midi instruments can hand 10 or so midi commands on one clock count. but 15 or more no. The buffer is filled up, and these later commands, go unnoticed by the hardware. Different for different hardware.