You’re totally right Michael, I’ve logged this on our side as a problem to fix.
I understand, and I’ve logged this feedback too. To be transparent, the priority is less important than other needs (given that it does not happen every day) - yet I agree it totally makes sense to be able to transfer projects between third-party services at some point.
Was it when you imported it from Bitbucket or GitHub? I’ve just made a quick test on GitHub and it works. If you can’t make it work, here too I suggest that you open a dedicated thread in “Get Help > SonarCloud”.