sssd and local users

Hello!
We have two domains in our organization, old and new.
Users remain in the old domain, but the servers (Red Hat Enterprise Linux release 8.4 (Ootpa)) are registered in the new one. sssd authorization is configured and working.
I found that after adding a domain user to the local group nginx (usermod -aG nginx username), command id username does not display the user's local group membership nginx.
please tell me where to look?
Google doesn't help):

p.s. Do I need to show some configs?