while my plane was doing an auto mission at 100 meters terrain altitude it started gaining altitude in the last 4 lines, knowing that the terrain was lower than the home location.
the pixhawk I used had done almost 50 full auto missions and some were with harsh terrain more than the last mission.
I had checked the data log, everything is alright except that the plane was trying to pitch down by elevator(ch2=1700) but it still going up, also it didn’t cut the throttle down.
all the readings for airspeed, ground speed, GPS, sat num, mag_field, roll and mechanical failure was all fine
