i had this spot several times and it destroyes all my footage. leaving countries randomly, how to get a quick fix either in Germany in the next three days or in morocco in the next week?

Looks a bit like mould inside the lens. You will have to contact DJI support.

In addition to DJI's Repair centers, you can try local dealers in the area to see if they can assist as well:

http://www.dji.com/service/repair/centers

Hey, this is a very common flaw. I was able to get rid of my fogged lens by leaving it in the sun. What happened with mine is the fog would only appear when I turned my Mavic on, and it would disappear again when I turn it off. So what I did is I sat in the sun and turned it on and off, making sure that there was always some fog on the lens to evaporate. It took an hour at least, but I got rid of it. But shortly afterwards my Mavic stopped focusing, so

Buy a pair of bags of silica gel and place them near the camera. At the same time, keep your mavic in a warm place with the camera low and the dew disappears overnight.

Regards Leif.

https://youtu.be/WgJbVrO3dBI