I discovered today that three recently added (within the last 3-4 months) z wave switches are missing on the ST app. They were added, and grouped, and the room to which they were assigned still exists, only now with one out of the three devices) The missing devices are GE wave in wall dimmer switches similar to about 30 I have elsewhere in the house. I have seen devices be “unavailable” when the connection is weak or lost, but I have not ever seen one up and gone. The switch is normally functioning and powered fine.
Any ideas? I am going to re-add them tonight, but wonder if there will be a conflict since the device was already added. Any help would be appreciated.