Different bitrates when uploading 4K videos

[Shih-Yu]

Describe the bug (required) A clear and concise description of what the bug
is.
Not sure if this is a bug but:

When uploading assets with 4K there are different results with bitrate which allows some to playback at 4k and some get downgraded to 1440p.

Example:
AssetId: 9b1d171b-c259-4f3f-88d5-9919b02ab11f
Bitrate: 21814755
https://bitmovin.com/demos/stream-test?format=hls&manifest=https%3A%2F%2Flp-playback.com%2Fhls%2F9b1dlnebk6z44w4a%2Findex.m3u8

Shows QHD as the highest quality for playback

AssetId: a057efef-4f56-436c-982e-37f887502c44
Bitrate: 22547564
https://bitmovin.com/demos/stream-test?format=hls&manifest=https%3A%2F%2Flp-playback.com%2Fhls%2Fa057o7p38yczlce6%2Findex.m3u8

Shows 4K as the highest quality for playback

Expected behavior (required) A clear and concise description of what you

expected to happen.

Expect that 4K assets are able to be played back at 4K or it gets downgraded to 1440p consistently.