Linkind motion sensors all stopped working a few weeks ago. I noticed one wasn't working and changed the battery but that didn't bring it back so I marked it bad. Then I realized all the Linkind motion detectors stopped reporting motion. They are reporting the battery level but not motion. Coincidence?
I would try factory resetting them and then run Zigbee pairing on them again. They will just reconnect to the hub as the same device. Pairing will say it found previously connected devices and re-add them. That might fix it.
Thanks.
I will give that a try.