Project wont open

Worked fine yesterday. Now suddenly I have to go to a version that is a week old to get it to open.

Once again…

It worked fine yesterday.

Any ideas?

maybe you´ve used a plugin, which is not very stable to operate with the system or cubase? did you done an process yesterday, which has already made in the moment, it interact, a markedly CPU-strain?

Not really sure. I finally just walked away from the computer for an hour and let it try to open the project. It worked, so then I deleted some tracks I didn’t need, along with a vst instrument I wasn’t using; all of which reduced the project file size. Now it works.