I would say "welcome to TMC but you have been here a while, so "welcome to your first post".
You mention (it appears, anyway) that you do have premium connectivity subscription. I would start by verifying that you actually, do in fact still have a subscription to premium connectivity showing in your online tesla account (not the app). Log into the tesla website and check.
note that, when I just went to log into my tesla account to see if I could provide click by click instructions to check this on teslas website, the interface has changed again, and I was unable to get to the "manage" section of my vehicle right now. I dont log in there often so not sure how long its been since the interface changed.
If no streaming works in the vehicle, its likely due to not having a premium connectivity subscription, even if you think you are paying for one (expired card, some error on teslas side, etc).
Start there.