I've had the similar issue with a night flight:
Air 3S RTH is set at 50m. Yet, aircraft would climbs to 500m if I did not stop it.
All firmware undated.
Here's what DJI responded:
Due to the ambient light being too strong or too weak, the...
I sat at the same table as Henry Kapono durin a Christmas party about 30 years ago. He was alone with no bodyguards. I realize You may have to Google who he is? But at the same time I had to Google most of the names mentioned thus far.
Aloha and Hello from Mililani Hawaii on the Island of Oahu in the USA.
Welcome in and Have a great time with a great group of knowledgeable Pilots.
Glad to Have You aboard
Education is key!
I have only been approached twice by LEO in my 10 years as a drone pilot and wound up helping one of them purchase a drone and then trainned them how to use it.