Copter 3.5.2 Single copter,stabilize mode, out of sync

Hi,all:
I made SingleCopter with 4 vanes. Building on pixhawk v2 with copter 3.5.2 firmware. frame types is 8. When i put in stabilize mode, the vanes are out of sync. Manual mode,is ok. How to solve it? which part in code is describe the problem