yesterday I slept very later....I do not understand
Sometimes I have similar problems

In regards to the software stability.....I have had it shut down on occasion so yes it has bugs.
On the plus side is the network information you get:
How many hops to a device
How many milliseconds does it take for the message to arrive
Test the Zwave network and a REAL optimizing of the mesh
Set the fade rates on scenes
Drag and Drop associations
Setup and save your network
Save templates if you do repeat jobs
Again....this is for those of us who do more than just one location, but I can see this software as a must have for large homes with lots of dimmers.
Note: Do NOT confuse this with the Think Essential software by Leviton as well. It is a waste of money IMHO. The Think Essential USB adapter will not work with the installer software! The correct adapter will say "Leviton" on it and it is the only compatible adapter for this software.
Regards
Tim