Violent altitude changes in Auto - log included

Hi Guys,

Just recently built a Tarot 650 quad running Sunnysky 4108 600kv motors, Pixhawk and 4S. The aircraft seems to fly good in stab, alt hold and loiter.

I have tried an auto mission but the aircraft seems to request some weird altitude changes. Could you please have a look at my dataflash log.

Regards

Jason