Ok well, this issue is solved.
As much as I’d like to skulk away from this thread like it never happened I’ll explain.
I hadn’t been able to get these zigbee sensors working reliably for about 2 weeks. Earlier today I read a thread about removing and re-adding zigbee devices after having de-powered your hub and removing the batteries from it, then waiting 15 minutes and re-powering. I did that, plus I added a zigbee power outlet/repeater, and was able to re-add the devices and they appeared to be working in the locations where I wanted them. Win!
That was this afternoon about 1pm. When I went to try one of my automations after sundown it didn’t work. I looked at my zigbee sensors and they were frozen once again.
Broken again!??? I somewhat lost my sh*t.
But… in the last few minutes I discovered that no ST commands were working. WTF? I went back and looked at the hub and it was flashing red. WTF again? I picked up the hub to look at it and discovered my problem.
Turns out when I de-powered the hub earlier today I put the batteries back in but didn’t plug in the power. It’s been running on batts all afternoon. Fresh batteries and plugging it in and everything works again, even my zigbee sensors!