I thought I would give -rc4 a go, but while testing, I noticed a 'problem' when switching into either Alt hold or loiter when the throttle is less than 50%.
If I spin the motors up in stabilize mode then switch to either Alt hold or loiter, all 4 motors stop after a couple of seconds. If I then switch back into stabilize the motors start up again at the original revs.
I've never seen this before - is there something I am missing????
Any help would be greatly appreciated.