Hello, the problem is like this. My aircraft is very stable in manual mode now. When everything changes to fixed height and fixed point mode, there will be a problem of height reduction, which is very serious. There will be a 2-3m height drop. And every time I switch from manual mode to fixed height mode and fixed point mode, there will also be a height drop. The adjustment of PID has not been improved. QGC ground and firmware are used. Version PX4, 1.8.2.
The link for downloading the log as below: