Hi, in der 3.1 wurde ein Fehler entdeckt:
Permalink Reply by Randy 23 hours ago
So we've found a little bug in AC3.1 just now. The symptom is that you arm and take-off in Loiter and it acts like AltHold. So it holds altitude but you find that you have full control of the roll and pitch angles.
To reproduce the problem you can do this:
1. turn on the TX with the flight mode switch already in Loiter mode position
2. power the APM/PX4/Pixhawk
3. arm and take-off in Loiter
If somewhere between steps #1 ~ #3 you move the flight mode switch the problem doesn't appear.
We've fixed it already in master and I expect we will push out an AC3.1.1 release within the next 2 weeks.