Motor overheating with new Pixhawk 2.1 on a new Skywalker based airframe

We have a brand new plane with new components to have the maiden flight of Pixhawk 2.1
Our setup is:
Airframe: Skywalker 1880
ESC: Hobbywing 70A
Motor: Hacker A30-10XL

We did a test flight with 3 takeoffs and did some autotuning. Log is here: After the 3rd landing we experienced that the Hacker motor itself was extremely hot. We have the same setup with Pixhawk 1 and Navio2 and have never experienced overheating before. Anyone has any idea why this happens? Thanks

Do you have a backup or a lot from the Pixhawk (1) ? Should be easy to compareā€¦