Motion detector is working but two switches don’t appear connected
Check the bridge they are paired to
When I unplug the bridge and reinstall it they work only for awhile.
There could be interference from either the physical environment of other devices that surround the camera that has the bridge connected to it. You could try moving the bridge to another camera to see if it improves. Also, maybe try using an extension cable to attach tot he back of the camera and connect the bridge to other end of that extension cable…
That is progress even though not a cure