Today I flew around 18 Min, everything works fine. At home I turn on the remote to download my flight data. It starts a continuous beeping. Ok no problem, dont panic just restart it again: still same, constant beeping. Be cool, give it a third attempt: What wonder it runs normal without any beep.

Any ideas what kind of weird message my remote want to tell me?
Thank you

For my P4A it beeped before takeoff and the screen told me I had a firmware mismatch. The light next to the controller battery strength indicator was Red, not green.  I allowed the system to get the missing firmware before takeoff and it was all green so I flew with no issue.

Could it be one of the sticks was not in its center position?

Sir, please try to calibrate your RC. You can take the mavic remote control calibration as reference.