Using group applications to authenticate users lead to internal server error

Hello,

I’m using gitlab.com to authenticate the users in an application I manage. I’ve been using user owned applications (applications declared in my personal settings https://gitlab.com/oauth/applications) for months, since this was the only kind of applications available, and it worked fine.

With the release of group owned applications (applications declared in a group settings https://gitlab.com/groups/path/to/my/group/-/settings/applications), I tried to switch from my user owned applications to group owned applications. However, despite the fact that I configured the group owned applications exactly as my user owned applications was configured, I didn’t managed to make them work. Each time my application redirects me to gitlab.com to authenticate me, I get a 500 internal server error from GitLab.

Did you manage to make group owned applications work? Do you have an idea what can be wrong with my setup?

Regards