I have 3 repositories in my bucket "bitbucket.org/earmaster-bucket/" and I am (was) the owner of all of them. Now I am told "No repositories in this project". It has been years since I accessed them last time, so I don't know when it has happened.
I have a developer that has worked on these projects and he can access them as expected. He can also see me as a user with access, but he is not the owner so he cannot see or change permissions.
I guess this has happened during a migration (to Atlassian?) of Bitbucket sometime in the past.