Score edit

I Run Cubase 6 on OS X, vers. 10.10.4. When I have done some MIDI-stuff recording, and ask to open it in Score edit, the program shuts down. Anyone know how to solve the problem?

We would need a bit more info to answer that.

Does Cubase give an error message? Can you open the Score Editor in a new project with just one midi track?

Hello.
This is the error message that came up after the cubase had been stopped. I can not open score edit in a new project with just one midi track.

It is possible your preferences have become corrupted, can you please follow the instructions at https://www.steinberg.net/nc/en/support/knowledgebase_new/show_details/kb_show/troubleshooting-instructions-for-cubase-nuendo-and-sequel-on-mac#preferences ?