Multi channel PCM audio for footage is not detected

I've been attempting to record multi-channel audio with PCM through OBS. Here are my settings:

I set it to record 2 audio channels

Whenever I import the resulting file, premiere only ever acknowledges the first audio track it finds.

Please note, that when I change the audio encoder to FFMPEG AAC, it all works perfectly and both channels are detected.

This issue exists in

Premiere Pro 24.2.1 (and before)

Premiere Pro (Beta)  24.3 (and before)

I've tried all other container formats with and without remuxing in OBS, the results are the same. Whenever I use multi-channel audio with PCM, premiere just ignores them.

I've attached a sample recording that has 2 audio channels recorded with the settings above. Everything esle (other players) is able to recognize them aside from premiere.