Hub Firmware Release Notes - 17.12/17.13/17.14

A number of people have reported problems with Z wave devices in the last few weeks. Probably the fastest way to find these is on the bug first reports page in the community – created wiki.

http://thingsthataresmart.wiki/index.php?title=Bug:_First_Reports

There’s also a specific issue that has been affecting some Z wave switches that appears to be related to a bug with the refresh command. You can find that technical discussion in the following thread: