I feel you there. No matter how many times they patch it it seems so unreliable. I’m using midi out from my interface/ableton and it’s the only piece of gear that gives me this issue. If I’ve just started the clock from the beginning of the time line with the proper tempo the arpegiator stays on, but otherwise it’s pretty much useless. I believe the same goes for clock sync LFO’s/FX but I’d have to double check.