There is for sure a bug with the arpegiator, i encountered it many while testing different things on the DN.
IIRC support said that it’s concerning especially one track (number 2) and i also remember the device was crashing while playing with voice allocation. I don’t think it is that rare tbh.
Also you need to wait lîe 30 sec after a reboot because of the high capacitor inside the device that needs to discharge.