I have two Minoston ZP21D on off plugs where the button has seized up - I want to take them out of service, but I can't press the button 3X to exclude them - I tried Zwave->Remove Failed Node and get an error message - I want to remove these without leaving any ghost devices - what is the best way to remove them? right click->delete?

I took a total of 7 Minoston ZP21D's out of service, 5 by excluding - I was finally able to get Zwave->Remove Failed Node to work for the other two, at least the AC did something and they went away, but an error message appeared at the end - Now, unfortunately, I have some of the removed devices appearing in the list of neighbors for some of my remaining z-wave devices - heal network does not make them go away - any advice on how to remove devices from the neighbors list? Is this a problem, or should I just ignore?

I would try ignoring it for a day or two. Let the mesh network figure itself out.