Tonight my monitor seemed to reboot itself a few times in a row. Not sure what that was about.
Now the PM2.5 (AQI) display seems to be stuck on 4 or 8 (always these two numbers), but the value sent back to the dashboard is actually 0. I have my air purifier running at max speed so zero seems accurate.
Edit: I just saw it jump to 20 for a split second. Multiples of 4?