I'm finding that the hot box doesn't always respond well on my Air 2. The other controls work fine; seems to be only when editing or calling up the hot box on the track rails. All other apps work fine. Anyone else experiencing this?

I've heard of this happening. Does it help to use just the tip of the finger, touch down lightly and hold very still for 1/2 second? If so, I think I know what's happening.

That did the trick. Thanks, pwnified.

Thanks for the update. If it happens again, please double tap the home button and make a note of all the apps currently running. Then try closing them all (swipe them all away except multitrack), and see if that helps. If not, double tap and swipe multitrack away as well, and restart it. The next step is to reboot. Please let me know which step helped, and if it's related to a running background app.