Drum Rack Glitch

[jibberish]

Super weird and annoying thing just started happening: in a drum rack clip playing on loop, after it plays for a while, Live starts to change the pitch of the first hit, as if it were a metronome. It's a brand new file, so I can definitely guarantee that it isn't something that i've done and just can't find.

Anybody else experiencing this?

I'm using 8.1.1 on a mac.

Thanks!

[jibberish]

So, I think I isolated it to random midi signal noise coming from my keyboard's pitch wheel. Weird, no?