Reproduce this issue using this video, and view frame size in explorer or use any app based on Media Foundation source reader. VLC, FFMPEG correctly report the file as 1920x1080.
https://teleport.blob.core.windows.net/content/should_be_1080p.mp4
The file was produced by an IP camera, may be non-standard, but MF should be able to deal with it given all other software does.
Also vote here : https://aka.ms/AA4y7a2