Why isn't the sound settings app in debian recognising my microphone?

I recently did a sudo apt full-upgrade and now my built in mic isn't being detected by the settings app.

arecord -f S16_LE -d 10 -r 16000 -c 2 --device="hw:0,6" out.wav

Does produce a wav file which I can play back and contains the correct audio. Seems like the issue might be somewhere between alsa and the control panel app, but I'm not familiar with all the layers in between.

uname -a
Linux alpha 6.12.9-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.9-1 (2025-01-10) x86_64 GNU/Linux

Running apt against the debian testing repo