Be careful when flying in fog. At 0:55 minutes the drone initiates an automatic landing even though I still want to fly. Luckily I was able to cancel this. Then at 1:07 the drone suffers an automatic landing. There was no message on the display. I couldn't abort the landing either. Cause: The propellers were iced up and I think the drone noticed this. Before the landing, I couldn't fly back and forth or up and down. Just turning it worked. Temp was about -5 degrees

Hi,

Nice video!

A DJI drone does not want to land when it is flying in fog, just because of fog.

As you see im the video the IT height sensor 'measures' height < 0.5 meter.Guess just before you showed the screen recording a height of 0.5 meter was seen.
0.5 meter AND RC downstick initiates a forced landing, same as a normal landing hover at 0.5 and RC down stick to land.
Iced props will reduce the lift, so motors needs more revs to keep it flying.
But this will not initiate a landing, or DJI has changed the FW recently to implement this behaviour.

Your flightlog will probably explain more, if you like share the log with the forum.
Use this link > https://www.phantomhelp.com/LogViewer/Upload/
Post the uploaded link on here.

cheers
JJB

I think that was a forced landing. I fly with a plus battery at 2300m above sea level, with icy propellers.
The propellers were most likely at maximum speed.
Greetings,Cola

Fog and frost don't work well together, but they can give great footage.
Thanks for the warning!