Dear Users,
Thanks a lot for your reports.
We acknowledge a bug was created in the 10.4 release. It impacts only users relying on GitLab JIT authentication without group sync.
We have created the following bug ticket to address the problem.
In the meantime, you can keep the workaround described in this thread: assign the api permission to the GitLab Application. We confirm that we shouldn’t ask for write permissions and that this workaround will only be temporary until the ticket mentioned above is released.
Thanks also for pointing out the documentation, it is now updated to reflect the current situation.