Autocomplete Not working NextCloud12 when sharing

Nextcloud version : 12
Operating system and version : CentOS Linux release 7.3.1611
Apache or nginx version : Apache/2.4.6
PHP version : 7.1.5
Is this the first time you’ve seen this error?: New server build, has always happened

Can you reliably replicate it? (If so, please outline steps): yes. Any time you try to go to share a file when you start typing the user’s name it does not autofill

The issue you are facing:

New deployment. Are users come from AD LDAP integration. When you go to share a file and start to type in a user’s Display name or samAccountname it does not autofill. If I type in the full Display Name or samAccountname it does find the user and seems to work fine…just can’t autocomplete to find them faster / easier.