I flew Iris yesterday for the first time in a few weeks. I had just updated it to 3.2-rc9 and run through all the needed re-calibrations. When it lifted off in Stabilize it didn't quite feel right but it wasn't anything obvious. When I switched to Loiter it got really twitchy and wouldn't stay at a stable altitude. I didn't even try any of the other modes since it was plain something wasn't right. I flew it twice yesterday, the first was bad but the second was way worse and I almost didn't get it down without crashing. The last time it flew it was on 3.2-rc6 I believe and everything was fine. No problems at all. I did post this over in the 3.2 beta forum but I figure it probably really belongs here.
I've included the logs but an't find anything myself that would explain what was happening. I don't even want to try and fly it again until I have some idea of what's wrong.