This has happened a few times now. Running Perc X as a plugin inside pro tools. After recording midi and attempting playback, PercX will sometimes go into a type of "loop" mode. By this I mean even when pro tools is stopped, Perc X instead of also stopping, continues to move across the GUI. When I hit play in pro tools and a midi note is triggered, the audio generated from Perc X does not restart at the beginning of the kit/loop but rather where ever the cursor happens to be inside the Perc X GUI. Restarting pro tools restores the plugin response to standard... stopping and starting with pro tools.