Okay this is making me nuts. I can't get the arp to consistently lock the MIDI beat clock in Pro Tools. The sequencer seems to be fine, but not the arp. I feel like I've tried every possible permutation - clock over USB, clock over MIDI, etc - but it's just not working. What's weird is I have couple pieces of Arturia gear (KeyStep and DrumBrue Impact) that lock up perfectly every time. What's even weirder is that the Rev2 arp syncs to MIDI beat clock in Pro Tools if I start at bar 1 in the timeline, but anywhere else it's way off. The tempo is right, but it's never on the beat. I've been surfing forums for weeks to no avail. If anyone has any insight/guidance it'd be much appreciated. I am going crazy....