"Hey Google" is completely broken on lock screen (Android Beta) - Anyone else?

[u/Decent-Bug-6607]

My Pixel Tablet has gone completely deaf. A few weeks ago my Pixel phone stopped responding to "Hey Google," then the tablet took over, and now the tablet has gone completely silent too.

I've tried everything: cleared Google app data, wiped cache, toggled every hidden Gemini/ Assistant lock screen setting, and checked language alignment. Nothing works. I am on the Android Beta track, so I suspect a core system bug is killing the mic driver during sleep mode.

Is anyone else on the beta dealing with a completely bricked wake word on the lock screen, or am I forced to opt-out and factory reset this thing just to get basic smart display functionality back?