Steps to reproduce
1.Install ldap user and group app from here https://github.com/owncloud/user_ldap and work fine
2. configure the server configuration and work fine
3. try to search users clicking on Verify setting and count users and found the users.
4. after 1.5 hours dont' see the users listed in the users page....
View all users enabled
View only the Admin account after 1.5 hours..
Operating system:Ubuntu 16.04 TLS
Web server: Apache 2.4.18
Database: MySql 5.7.18
ownCloud version: 10.0.0.12
Updated from an older ownCloud or fresh install:fresh install
Where did you install ownCloud from: officiale repository
Signing status (ownCloud 9.0 and above):