Hello - I'm a brand new Mini 2 owner and first time droner.

When I try to edit a 3 minute and 3 second video to add some music and other effects in the DJI Fly app it takes a second to finish "Transcoding.." and then returns 'Cannot Decode'. Has anyone had this happen before? I've confirmed I have the most up to date iOS and the most updated DJI Fly app. I was able to successfully Transcode and edit a 1 minute video clip. I'm curious if there is a maximum file size/video that's causing this to happen?

Hi!
You might be better off posting your question in the 'products' section of this forum.
That is way more active.

Try recording in H264 (24fps no higher).

Make sure you have bluetooth turned on and that you are in an area with little interference when transferring the files