Another example of a 1080p output from a 4K video recording in a quickshot mode is the Dolly Zoom on the Mavic 2 Zoom. It ouputs in 1080p to increase the background zoom effect from 2x to 4x by also cropping the 2x optical zoom of the 4K frame to the 1080p center of the frame.On my M2P Asteroid mode drops to 1080p and everything else is in the selected resolution that I've got set for regular recording.
So just looked at the file straight from the card and looks great so it's something I did Premiere Pro that screwed it up.
Just tried to run it through Premiere Pro without any edits and exported it again and had the same results but have no clue what I am doing wrong with my export.