@chris
this botton clicking is a good diagnose feature. One can well detect which one has issues.
@all
I used Z-Wave PC-Controller 5.38 downloaded from (last item)
Using my PC I was able to get rid of the ghosts by using the feature: remove failed of the software.
The ghost are gone now. However, I deleted one node that was not connected anymore. That one I can not include anymore (next story**).