I talked with the SC, and she said constant opening/closing of the window can cause it to overheat and stop working. After it cools down, it should work (I assume you've noticed this by now). Seems like an odd design. I wonder if other cars have this overheating behavior. She also mentioned the open/close and then hold the button down for a while to reset things, but that never worked for me (even using the half rather than full button position).Just walked away for a bit and came back, was finally able to get the window up again. There must be some nuance with the gravity's internal network/bus that causes it to get in some kind of stuck state. Same thing happened when I pressed the 2nd row button a bunch of times and it eventually just stopped responding.
It is interesting to see if 3.6.0 has caused a regression in window behavior. So far, the walk away, come back after 15 minutes seems to eventually resolve the problem. I guess that's a win. I'm looking forward to the next release.