I quadruple checked the settings and the card compatibility last night. I set it to beep for status every 5 minutes. It switched off every 17 minutes or so. The first couple of times, I was able to page into the app and reactivate it. The last time, it froze and wouldn't turn back on. Last reported battery was 77% so it's not dead.

The recordings from when it was on are there today, que milagro. It recorded 2x 5 minute segments each time. I was tracking the beeps and was definitely getting a third one before the light shut off, but that would be 15+ minutes and there's no footage to reflect that.

I'm going to try a different SD card this weekend but I'm not optimistic given the circumstances.