Hi - Assuming you've tried the usual generic troubleshooting steps (shutdown/restart, fresh ensemble, etc), I've linked the course to this thread -- perhaps some other Reaktor experts (or one of our Reaktor gurus) will be able to provide some suggestions. Btw, it wasn't quite clear what was happening in Logic -- it sounds like intermittent triggering of notes from the Musical Typing Keyboard? Does that behavior also occur playing from a regular MIDI keyboard?