@quadsours; I also saw same thing today using a generic Pixhawk, ( will pull cover off quad to see which one I have in there- guessing 2.4.6, it’s been a year since I last flew it!) but all the ch 9~16 trim, min, max values were off. I reset ch 9~16 values in Parameters list to same values as ch 1~8 and resolved problem. 8 flights today with no other issues.
I did have issues when connecting to MP to flash 3.6.5 rc-2. I can connect to MP OK, change things etc., except when updating software. When I got to the disconnect FC message box, I had to hit the “OK” and re-plug FC in within a second; any longer delay in reconnecting the FC, and MP and MP would not see FC type and fail flash. I thought perhaps that was why my ch 9~16 values were off, but perhaps not. Will try and a second Pixhawk later today and see if it does the same. I only did the upgrade in the ChibiOS version, not trying the Nuttx version first as I did in rc-1.
No such issues with my PixRacr.
Also noticed that when downloading Data Flash Logs from todays flights, my HUD goes nuts rolling and throwing an error during the download process. Never had that happen before.