A little disappointed with USB-MIDI

I know I’m not the first to post about this but MIDI from what i experienced with the Organelle is unusable. I’ve experimented and noticed the note off signal never sends with 3 different USB MIDI keyboards Ive tried making it unusable to jam with. It’ll hang the note and won’t turn off till the patch is restarted, very frustrating.

Not sure which USB-MIDI keyboards you tried but maybe this post about a M-Audio controller will shed some light on the issue: