Hello there Gregor Queck. I am sorry for the trouble this has caused and thank you for reaching out. Since you wanted to use and 3rd party application to edit the flickering on the said video, I hope that you will get the best information with regards to this matter from our fellow DJI co pilots on what 3rd party editing software they are using. Thank you.
Hi there. Thank you for reaching out. Hope that you could get the best recommendation from our fellow DJI Pilots here on how to edit or remove the said issue using 3rd party editing software. If you experience this issue very often, kindly please try to backup all the files on your SD card and try to reformat it then check if the issue persists. Thank you for your valued support.