After 2 years of trouble-free operation, I've just run into problems with the Dude notifications.
I noticed that most, if not all, of the devices I am monitoring have extra notifications ticked (see screenshot). This is the 'notifications' screen for the 'ping' service for a particular device.
I didn't tick the 'log to events' box, and it has never been ticked.
Now, however, if I untick it and apply the change, it keeps coming back. This seems to be happening to every probe. The notifications I have previously set ('Dude Logger' and 'Email IT') in this instance, are always present, but there is always one further random notification ticked.
I tried reverting to my most recent backup, but it's still happening.
Has anyone seen this sort of behaviour before?