Not all OU in 1IM DB after Active Directory Syncronization (Missing some OUs)

Hello! 

1IM 8.1. SP2. 

I created Sync Project Active Directory. 

I did not change scopes or filters. 

Not all OU inserted ADSContainer table after syncronization.

Logs has not errors about OU. 

In test enviroment with test AD all ok.

Why it did?