Aeotec Nano Dimmer spurious physical event

I use node-red for all of my automations and I have one that distinguishes between digital and physical events. The issue I'm seeing is that sometimes I get a spurious physical even along with a node-red generated off command to the dimmer, The nano firmware is up-to-date and this has happened with several versions of HE platform and I've found no way to determine where the physical event is being generated. The event is logged in the HE logs but I think that would be the case regardless of where the event is generated. Anyone else seeing such spurious events?