During the test flight I had a strange behaviour of the vtol quad. At the end of the flight I tried to do a transition at altitude and then go back to forward flight.
The transition to hover was without problems, but the subsequent transition to forward failed because the forward ESC had low battery protection and did not allow the front motor to start. So after a few seconds I switched back to QHOVER mode, and this resulted in violent non commanded yaw, with one motor saturating and current going up to 150 A.
I tried a second time, and it was the same.
Both times it felt like the plane was loosing control, but then recovered.
I then just dropped the plane in manual mode, the forward motor started then normally and I landed after making another thransition to Qhover at much lower altitude.
