Hello,
Note: Please disregard this if you can't reproduce it - I can wait for the official images.
I built Sculpt VC from GitHub (both "disk" and ISO images), but there seems to be a problem with the USB pointing device in VirtualBox. (I tested using the VM from the Sculpt TC appliance, so there shouldn't be a VM configuration problem.)
Leitzentrale displays fine, with the Manager window, Log window, and the new VC Diagram. The F12 key works to show/hide Leitzentrale, so I know the system is alive, but the mouse doesn't work.
In the Log window, the following is the only relevant message that stays long enough to read:
[leitzentrale -> wm] Warning: no focus model available
There are other USB-related messages, but without the mouse, I don't know how to examine the log.
Thanks!