Over the past day or so I'm not seeing unread messages in threads I've previously viewed. Desktop and mobile both seem to be the same.
Clearly there are new posts on the playoff thread at least!
Is it logging you out? I have to login repeated on each device now. Annoying but everything works as I login.
It does force log me out around 80% of the time. Either way it's the same. Not a biggie, just a very minor quality of life sorta thing.