Root login failed on Version 15.5.3

I have updated today to version 15.5.3 via dnf update on Redhat 8.0. Now I have the problem that I can no longer log in via root. I tried to change the password as described here: Reset a user's password | GitLab

I also get a message that the updated password was successful, but I still can’t log in.

Does anyone have any advice what I can do?

Even i’m also facing same issue after upgrade to Gitlab 15.5.1. Did you figured it out how to solve this ?