- Start Cubase Pro 8 and load a project, wait for Cubase Pro 8 to crash
- End Cubase Pro 8 Task in Task Manager if required
- Start Cubase Pro 8 again, load a project
-> Result = USB-Keyboard is no longer recognized by Cubase Pro 8 unless you turn off the keyboard and on again in between the crash and new start.
System specs are as stated in my signature.