flickering video

I have been having a very hard time removing a flicker from my 4k videos. It is especially noticeable on vertical white features, like a railings or trees. It often occurs on a roof, with the roofing tiles causing a resonating wave as the drone pans across. I've tried to shoot all manual...

How to get rid of flickering video on my Mavic 2 zoom. Is there a way to avoid this from the beginning in the settings or is the only way to do it after in an editor. Very disappointed Mavic 2 zoom owner.