I do have OUs for domain user scanning in config/scanning/setup/scanning method.
When I initiate a scan, I receive message that it is in the scanning queue. When I go to scanning queue, I don't see any reference to OU's being scanned.
I just unticked Active Scanning, and chose scan now under domain user scanning and again was told "Target added to scanning queue", but nothing shows in scanning queue and results are still incomplete.