Yeah, but for me that wouldn’t be far from handling backups manually, like in the “old days”. I’m quite certain I would forget to turn Dropbox sync on again that one time that I need to access a project from somehwere other than my studio.
Besides, to clarify: I have this issue with Cubase 8.5. After removing all Steinberg files and doing a clean reinstall of the software. So it can’t just be related to C9.