video quality loss after exporting blender vse I use this ffmpeg function to record an area of my screen for upload to youtube.

    function req()
    {
      ffmpeg -an -f "x11grab" -framerate "120" -video_size "2594"x"1458" -i :0.0+5,+257 -c:v "libx264" -crf "16" -bf "2" -flags "+cgop" -movflags "faststart" -pix_fmt "yuv420p" -preset "ultrafast" "$1".mkv
    }


I get the output video and directly upload it to youtube, it processes and I have access to 1440p resolution.

The problem is the video needs some editing, mainly removing some junk clips at the beginning and the end.

After I edit the video in blender vse and upload it to youtube, the highest resolution is 1080p.

here's the export settings



I've even tried to export it at h.264 lossless but I still have the video only exported as 1080p.

here's the raw video uploaded: https://www.youtube.com/watch?v=2NzSlo3knbk
    going through blender vse: https://www.youtube.com/watch?v=LYUTu6UV5ug

This is probably user error but why can't I get 1440p again after exporting the video from blender vse?
I have noticed that sometimes youtube get finicky about its actual resolutions it uploads and can be inconsistant if you dont fit to their resolution standards (sometimes it works, sometimes it doesnt).

As in, resize to 2560 x 1440 and try uploading then... List of supported resolutions is here -- https://support.google.com/youtube/answer/6375112