As above reporting about something that has never happened before.
The FSL issue was answered in another posting here, where you were also involved … to the PMDG, that happens, when the time/date in the sim is out of sync with the real-time/date.
Read #3 under the FAQ - Nav Data Out of Date - this should fix your issue
That has nothing todo with the navdata because we only provide the cyclenumber and the from-to date and that´s set correctly.
… and here the result from the ident page (PMDG 737):