I installed Nextcloud 16 on a VM and connected to my LDAP. I see the list of users, all of them. But the user names on the Users list turned into something like 1a766401-2b7311e8-841fbcdf-1b2572c4. It is hard to search for them. Then I found here information that says a tag sAMAccountName was needed as the Internal Username in the Expert tab. Then I added a new user via LDAP, hoping to see a proper name on the list of users with proper names. But it did not resolve the problem. What else could be wrong? Please, help!