I've had this issue in the past and it was a Cisco database issue, in my case it was rectified within a couple of days without any intervention from my side, however I would try "Check for updates" manually on a couple of systems and see what happens. If still incorrect open a case with TAC.
Edit: Had an issue a while back when I think about it, which was caused by "major serial number" and "minor serial number" not being linked correctly by Cisco in their contracts database - either way it'll be a Cisco back-end issue.
/jens
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