Odd thing happening here. Twice, my RasPi-based HG server has lost all the Z-Wave device names and on the first occasion it lost the device groupings too.
As far as I can tell, in both cases I set up my system, then took a backup of the configuration and both the backup's XML files and the running installation of HG then blanked out the device names. The setting for the LIRC remote control also got reset from "on" to "off".
Any ideas what's causing this? Latest version of HG.