I have a couple of fans that somehow fell off the network. When I reset them, ST apparently saw the same ID and just started communicating with them. However, WC sees them as duplicate fans. I saw that there was a data cache rebuild, but that didn’t seem to fix it.
How do I get rid of these duplicate devices? In case it isn’t obvious, the devices don’t show in the ST IDE…
Not sure if this might help but how about a hard refresh of the browser when the dashboard is loaded.
It’s a 15 minute process, but I would try logging into the SmartThings IDE, and then removing the real device (as well as any duplicates you find)… Then wait a few minutes, and try to add the device back. (as if it were a new device)
You will also have to add the “new” device to webCoRE’s list of available devices… and tweak any code that refers to that device…
(and perhaps Ctrl-F5 to hard refresh the Dashboard afterwards)