Use Veyon without admin rights

[raphael]

I configured my veyon with the "logon authentication" and I am not able to make it works as a regular user.
Everytime I test de method, I get this error :

If I use an administrator account, the test succeed. Does it mean our users will have to be workstation admin to use veyon ? Or did I skipped the part in the documentation to change this behavior ?

In my LDAP basic, I am able to make every test successfully.
Access control also says success

Thanks !