Nearly half of my Things are unavailable (December 2018)

[JDRoberts]

It’s also possible you got caught in whatever this is:

Hub Firmware Release Notes - 24.20

We apologize that we were unable to provide advanced notification of this update; we strive to alert you to updates in advance. However, due to a concern regarding the loss of Hub connectivity after a reboot or power outage, we needed to apply the update without advanced notification. Your Hub experienced downtime of less than one minute as it rebooted and applied the update. Firmware Version 0.24.20 Hub Target Samsung SmartThings Hub v2 (2015) Release Date Monday, December 10th Release Notes Bug fixes regarding a loss of connectivity after a power loss or reboot Device firmware updates for 2018 SmartThings Outlet and Sensors Minor bug fixes

@johnconstantelo May have some thoughts.