Frieder, as someone who had to reinstall 1.0 three times when it couldn’t open a project, I have no complaints with the safety first approach!
I’ve found that the last three Audiobus recordings were no longer referring to the correct wave files, the audio appearing to have been corrupted in some way. I’ve deleted them and imported the originals from the trash and so I haven’t lost anything. The project however still fails to open every time when I open Cubasis, but so far always loads from the media manager.
Not ideal but a lot better than a crash and wipe out and I can live with this if it gets me to the end of the project!