Crashed in RTL after test flight

Hi guys,

I had a believer frame flying on 6S. It had about 4 hours of flights. Yesterday i changed the power source from the servo rail as I had some interferences I’ve got issues triggering the camera. I switched to the BECs from ESCs. The test flight was ok but when the plane started the RTL sequence, started to come to the home but near to the home it rolled away and crashed 500m from the home point.
At the moment of the crash it had GPS lock and from the log every thing seems fine. Maybe one of you guys can enlighten me to what happened.
Log download:

maybe point me to someone who reads this logs and digs deep to see the issue?