So after a few flights of the APM just acting weird in general (fighting me while on stabilize, random tip stalls/dives, flying inverted randomly, etc) I finally recorded the telemetry screen while it was in flight (I was flying LOS as it was about to crash at any moment) and I noticed that the head's up display is showing a seriously wrong horizon, even the opposite at times.
I have a second APM that I'm going to try in the air while I try to fix this one. Anyone seen this before/have a solution?
See you Saturday,
TLOG: (I think this is it, I'm having trouble with my graphing function on the APM, so I couldn't verify)