Sounds like a system glitch. Just call the customer service line to ask if the have an explanation. Don't give too much importance to the system update.
Attorney Jennifer Ahn's answer is to provide general information only, and should not be construed as legal advice on any subject matter. The content of this answer is not intended to substitute accurate legal advice, which is relevant to all the facts and circumstances of your specific case. This answer does not create an Attorney-Client relationship.
I wouldn't lose any sleep over this. One more sad example of a notorious USCIS "system glitch" (or screw up). Call the USCIS Nationwide Toll Free number to have them investigate and open a "service request" to fix the erroneous data.
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