Jellyfin not picking up cast of a video

[happyvoid]

ffprobe -v error -select_streams v:0 -show_entries format=format_name -of default=noprint_wrappers=1:nokey=1 movie_file.mp4

Cast detected:
mov,mp4,m4a,3gp,3g2,mj2

Cast not detected:
mov,mp4,m4a,3gp,3g2,mj2

So that should be ok, right?