I just built a new plane (mini talon) and installed a Pixhawk in it running the new 3.3 software.
Initially I was getting an error I had never seen before: Error EKF PRED POS HORIZ ABS and the horizon was rolling around slowly. After some digging it looks like the only other people that had this were using a beta version of Mission Planner. Earlier today I had upgraded to 1.3.27 (on 2 laptops) so I rolled back to 1.3.26 on both and it seemed to resolve that issue.
Now that error is gone but I just had another instance of the plane showing roll (all the way inverted) while the plane was sitting stone-still on the ground <sigh> While trying to arm during this (no prop...just testing) at one point it did indicate PreArm: Inconsistent gyros
After a power cycle I was unable to replicate the issue.
Has anyone else had this happen? The initial time it did this it was sitting on my worktable (so there was no temp difference). This last time I had it outside so it was warming up rapidly.
Here is the .tlog:
Note: I was turning on/setting up the current sensor via telemetry during this log thus the crazy voltage readings.