SRAM XG-1299 Cassette Separation & Creaking

I had a creak while climbing… and in going over the drivetrain with extreme diligence, I found that the pinned on 50T plate isn’t actually fastened securely to the other gears machined out of one piece of metal. The big plate flexes freely and it’s clear the pins do not hold it in place.

Has this happened to anyone else? Does SRAM warranty it?