We have installed Cube 6.4.2 on 4 workstations. It works fine on three. The latest (running Windows 7) installed seemingly OK, but Cube doesn't open. I can see the licenses in the license server from this workstation.
When I click on the Cube icon, the Cube image (with Loading...) shows on the screen for about 1:20, then closes.
I've uninstalled and re-installed 3 or 4 times.
Any clues? It works fine on the other workstations.
After much difficulty we finally solved this! It turns out to be an issue with Python, which also caused the same behavior with ArcMaps
In case anyone else encounters this