User logon redirection doesn't work : they stay at /home while they don't have permissions to access it (on purpose)

[palijn]

Hello,
I'm deploying a fresh instance (Docker, Linux).
Created a non-admin user "A" which belongs to a new group "A".

This user has permissions to access pages,media and comments only with pages path starting with /fr/a .
So, I need to have them directed to this path at logon.

I set up the redirection at the Group level (the only place where I found the settings) to a path I checked the user has access to.
However, at logon, the user is met with a big red error page "Unauthorized - You cannot view this page" .

Clearly, at login the URL is only https://domain.tld/home , which the user does not have permissions to access.

If I copy/paste the "Redirect on login" path in the browser URL, it works fine, so, the permissions seem correct.

Am I doing something wrong ? In this case, what should I fix ?

Note: If that's relevant, that there are 2 locales so every path is prefixed with en or fr and the user only has access to /fr/a . Both locales are active and I tried to switch the default one without success in fixing the issue.

Thanks a lot for any help !