Exact same experience @M_J My remote Schlage FE599 lock has been falling on and offline for weeks after this hub update for my v2 hub was updated. Tried all the usual attempts of excluding/reading the lock, repairing zwave network, and updating WiFi settings to no avail. The lock immediately comes back online as soon as I initiate a remote reboot of my hub through the advanced user interface which seems to indicate something is crashing/timing out on the hub itself, Particularly since the lock itself has been flawless for several years of operation now.
SmartThings support has been engaged, but issue appears exactly the same as several other others were all experiencing the same issue subsequent to this hub update. Thanks to JD for rolling these up under the following thread: