PDM not iterating number

Hello,

I am working with Solidworks PDM and since we migrated our license last week, whenever I attempt to generate a serial number it is not recognized in the PDM allowing other employees to generate the same serial number in other folders. This has been causing problems in our ERP system as multiple people are trying to save the same part number. As far as I can tell my computer is the only one that is currently effected.  How would I go about allowing the system to iterate again?

Thanks

SolidworksEdrawings