[Samba] Problems after upgrade from Samba3/OpenLDAP to Samba4 - New Useraccounts aren't properly working

[Jens Günther]

Hello! 

We've got some problems after an Upgrade from OpenLDAP and Samba3 to Samba4 AD (4.5.12 on Debian 9). After a successfull upgrade. we can't create no new properly working User-accounts with the RSAT-mmc (Windows 2k8, which is connected to the DC). The account can be created in RSAT and can even login on a Windows 7 Client - which is fine - but the account doe not got any access on networkshares.  On dc-side you can retrieve the user-accounts via "wbinfo -u" (the old and new ones), respectively old and new groups via "wbinfo -g", but when you execute "getent passwd" it will only display the old useraccounts and not the new ones. It seems new accounts don't get valuable uid/gid. Does somebody know how to fix this problem?