I used two GPS for Yaw. My flight control version is 4.0.7. GPS is F9P. The flight mode is Loiter mode. My helicopter is powered by an internal combustion engine. About 130 kg. After damping the flight control, the vibration of the helicopter should not be too great now.
However, after flying normally for more than an hour, the helicopter suddenly reported a GPS Glitch. Then the helicopter landed. When I looked at the logs, I found that the desired height DAlt and the actual height Alt had changed from a few meters (which was true) to over 300 meters (which was completely false). I haven’t found out the cause of the malfunction. Now when I turn the power off and restart the helicopter, the fault is gone. I am very surprised and confused about the cause of this malfunction.
This is my flight log. Ask for your help about this error. Thanks!
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