Cold weather 3 hour power/internet outtage - ST messed up [again]

So we had a 4 hour power/internet outage last evening. During the power/internet outage the st hub v2 was connected to a working UPS and i even put fresh batteries in it. the internet for the neighborhood was out so anything st did not work.

when the power and internet returned I noticed the led light changed form blue to green. I tried a couple buttons that control plugs, but none of that worked.

upon checking in the ide i see ghost id’s in the path for the zigbee buttons and plugs.

what i dont understand is why did these ghost id’s happen when the hub was powered during the power outage, but no internet.

what is the process of clearing zigbee ghosts?