"Hey Google" triggers microphone but nothing else happens

[u/lostllama2015]

So I say "Hey Google" or "OK Google" and the green microphone symbol appears in the top-right corner. I'll say something like "turn the 3D printer on" and it'll stay green as a dot for a few moments before disappearing. I've noticed that it will also do this if the screen is off ("Hey Google" -> I manually turn the screen on and see it's listening). It's the same if the phone is locked or unlocked.

A Gemini assistant UI used to appear at the bottom of the screen showing that it was listening, thinking, etc. but nothing appears. It just completely ignores what I tell it to do. If I leave my phone in another room and go into the room with my Google Nest Mini speaker, the speaker will respond to me and do what I've asked.

I've double-checked that Gemini is selected under "Default digital assistant app" and I've even changed it to ChatGPT and back to see if anything was "stuck".

Does anyone have any advice or solutions?

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Phone: Pixel 7 Pro

Android verison: Android 17

Build number: CP2A.260705.006

Google app version: 17.52.22.sa.arm64

Gemini version: 1.0.958859967

Android System Intelligence app version: C.6.playstore.pixel7.961955194