i actually have no idea why.... but during playback it says: Assertion failed: p_events->time_stamp > = SampleClock(), file ..\se_sdk\SEModule_base.cpp, line 281 Might be a compatibility issue with Kontakt5 because it reset a lot of the instruments in it, but it also reset some of the instruments in MicroTonic too. Very annoying. Going to switch back to Kontakt 4 I guess and see if it stops screwing up.