So the word of the day today is "glitches"

To those of you receiving weird notices, don't be surprised, that stuff happens all the time at USCIS. Last renewal, I got my EAD fine but I never got my I-824D approval notice and the reason was that they delivered it to my old address...

Fast forward 2 months from that, I got them to give me the notice by calling the CS center, and I got it, but a week later, I got 2 forwarded notices for telling me that I needed to renew my permit... Sometime later, I also got text notifications that my application had been received... 3 years after they were received.

USCIS is a mess, always has been, and I'm only one person, and I've had several things like that happen to me. Just make sure to double check with USCIS that they have your correct information when you get weird shit like that. Other than that, you are at the mercy of their ineptitude. Harsh, but true.