I have a test project with lots of external instrument inputs and a couple of VSTis.
It’s refusing to open.
I did think it was Battery 4 causing the problem, but I’ve temporarily moved it out of the plug-ins directory just in case.
Previously, I had Battery 4 with half its audio outputs enabled, which caused Cubase to crash on loading the project most of the time. As an experiment, I set up ALL the outputs, now it doesn’t crash, but refuses to open the project.
I’m on 64 bit Windows 8, Cubase 64 bit 7.5.30.