Ditto here.
Cubasis 10.0.20.
I am using the demo version but this has crashed my pc more than several times.
The only thing that worked was removing the vsl ensemble pro 7 because everything crashes at the opening mixer.
As soon as that was removed no problems. Also the other problem is check the size of your .cpr file. Mine ballooned to 19 mb.
If you can get access back to your file may I suggest that you freeze your tracks that way the audio is unloaded and saved a replayable audio file so less procession and you get audio saved to a file in audio file and a smaller .cpr file.
I am using IK Philharmonik 2 which has been causing some problems on my system so that could be part of the problem with me. At least with Philharmonik you can use eco or lite versions.
I did try to create a dump file and you guessed it crashed.
Just adding my two pennies worth.
Ta
David