Fork not registered as deleted

I’ve recently deleted a fork of a repository (TheEvilSkeleton / vkbasalt-cli · GitLab), however, it still shows my fork in the upstream fork counter, but not in the fork list, when I try to fork the project again it redirects me to the old fork but with a -deleted at the end which leads to a 404. Did anyone else also experience this issue? Is there anything I can do against this?

I have the same problem with a fork. Did you solve your issue?