QAS can't see Unix enabled account when OU is changed
When a Unix enabled account is moved in Active Directory to a new OU the account which was visible to QAS before no longer shows up. The attributes of the account no longer shows the Unix attributes that are required by QAS.
AD permissions on the new OU were preventing QAS from seeing the required attributes for the users. In the advanced security properties of the OU the "Include inheritable permissions from this object's parent" setting was disabled.
Enabling the "Include inheritable permissions from this object's parent" setting fixed the issue.