DSI support says, "Your MIDI clock is bad, but we're working on a fix that'll deal with bad MIDI clock better."
I'm writing because I have a KingKORG, Lexicion MPX1, and an Analog Four module and they all have delay effects that seem to sync fine. I will admit that I had a DX200 at one point and I could not use its delay because when it was synced to MIDI it glitched. Is Live's MIDI Clock out to blame? I've tried a MOTU MIDI Expess, Maschine and Analog Four as MIDI interfaces and they all have my issue.