I had a smartthings v3 hub setup some time ago, with several sensors attached, including smartthings multifunction and motion sensors. All were integrated nicely into Home assistant.
The hub broke completely and, whether this was the best idea or not, I purchased a refurbished replacement. I removed the old device from smartthings, added the new one, and then started added back the (reset) motion sensors.
In HA, I uninstalled and reinstalled the smartthings integration with a newly generated token.
The motion sensors on the hub have not been added to HA. Indeed the hub does not show up. There are other discovered devices, such as my Harmony hub but these were not added to the smartthings hub. Not sure what to do to get my sensors readded