Received Reject Code F540/NR/2EZ-320 for California. Federal accepted. Not a 540NR filer. Could this be a temporary error with California FTB (Franchise Tax Board)?

 The State of California rejected your California Income Tax Return because the SSN of the primary or spouse has been used on an accepted CA tax return. You must mail return.

https://ttlc.intuit.com/community/printing/help/how-do-i-print-and-mail-my-return-in-turbotax-online/00/26258

If we assume that the "SSN of the primary or spouse has been used on an accepted CA tax return" by a fraudulent (or error prone) individual, then how could have the federal return been accepted (which it was prior to the California rejection)? The same SSN feeds both the federal and state (California) returns so it is unclear how the SSN double-use explanation would uniquely apply to the California scenario.