I had called rivian to see why I hadn't received my update yet and that's exactly what they told me. I went out into my garage and reconnected my rivian to our wifi just to be sure and within 30 min or so I got the update.
I'm thinking I wasn't connected before.
I got mine today in the early afternoon. Maybe a coincidence, but it showed up about an hour after I contacted service just to make sure everything was ok.