WORKAROUND 1:
Specify an UID number that is in between the minimum and maximum range and the is not in use locally or in AD.
WORKAROUND 2:
Change the minimum and maximum UID setting in the control center by doing the following:
1- Go to the QAS Control Center
2- Click on Preferences on the left panel
3 - Select Modify Global Unix Options ... (blue link in pane on right hand side)
4- Enter in the Minimum and Maximum UID number
Please note: The control center (CC) min and max settings do not have any affect on GID and UID generated when using the autogen-posix-attrs true setting. The generation of IDs with this setting are explicitly based off the GUID.