As soon as I go to underslung mode (upside down), the phone rotates and video rotates as well, so it plays upside down when I use DJI Mimo application. If I use iPhone video, everything is OK. What is wrong with DJI Mimo app orientation?

I use iPhone 12 Mini

Hi! You might be better off posting your question in the 'products' section of this forum.  That is way more active.    -   https://forum.dji.com/forum-129-1.html