APM 2.5 Quad on firmware 2.9.1.b throttles down and lands by itself even while applying more throttle in stab mod? It throttles back and lands as if the apm is telling it to like in rtl mode but from what ever altitude you currently are at and location, you are left with no throttle control but I was able to move side ways and forward and back to avoid obstical once I realized it was coming down.
Once it was on the ground the motors would drop to a low idle by themselves till I lowed my throttle to minimum, then the motors would shut off. Once in a landed motors off state you could not take off again till you powered down and back up again (by disconnecting the battery). I repeated this 3 times and got the same results, took off fine then after a short time it would start the slow decent and no amount of raising the throttle would avoid the settling.
I had this happen with 2 different battery's, with final resting voltages being around 11.4v.
I have the battery failsafe set to rtl at 10.5 for if all else fails, so I don't think its this.
Any ideas people? Am I missing something simple?
Do you need more info? I tried replaying the log but I can find any for today's flights?