Not excactly the same but I got this pop-up this week, suddenly my name was different
:
Delta Profile and Secure Flight Name Update
The passenger name in your Delta profile is required to be the same as the Secure Flight full name provided to the Transportation Security Administration (TSA) when booking reservations. We have detected your name may need to be updated. Please choose one of the following options to ensure the name in your profile is your full name exactly as it appears on the government-issued identification that you present at the airport when traveling.
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After updating my profile i noticed my KTN was missing..