Did you set SIM cords to your place?
Your gps is actually not getting same position every time it calculate a position.
My AOG say I move around 0,1 km/h when standing still, this could trigger AOG to shift between forward and reverse.
So set The MIN speed (in single antenna settings) higher than the standing still speed.
If you set Roll filter very high, roll take forever to stop rotating.
Or you have set gps receiver to only 1 HZ instead og 10 HZ
Did you install the rover file?