It happened to me twice during last month. I have two controllers, at separate locations.
About a month ago, short time after the last firmware upgrade, one of my z-wave switches stopped working. When I checked what its configuration, I’ve found that It has attached scenes… from another controller. Checking the scenes sections and… yes, some scenes disappeared and were replaced by ones designed at another location and another controller.
Surprised, I’ve restored backup from couple of days before (couldn’t exactly tell at which day it happened, so I decided to try some older backup to be sure it is correct), and everything went back to normal.
Except that today I have the same case - some scenes are missing and are replaced by scenes from second controller.
Anybody has the idea what’s going on?