Configuring LDAP in Nextcloud

I’m trying to get LDAP working. I have a simple LDAP database, with only one entry under People. It’s a posix Account objectClass. I was able to get past the Server tab on the admin page, (Nextcloud can log in to my LDAP server), but can’t seem to find any users when trying to complete the ‘Users’ tab. I should find the single dn that is under People in the directory.

Also, I don’t see anywhere how to configure which attribute to use for the password.

Anyone get this working with Nextcloud 12?