After I left GitLab, my account was transferred over to my personal email address. I notified GitLab that I was still able to access confidential issues which were assigned to me, even though it was no longer associated with my former GitLab email address. Since they cannot figure out how to disassociate my personal account with the confidential issues, they have decided to just indefinitely block me out of my personal GitLab account until they figure out how to resolve the issue.