I'm also having this issue. While restarting the game does fix this temporarily, the game session invalidates far more often than it used to. I've had to revalidate my session 3 times in one day whereas before I would only run into this issue once a month.
Schyzm
I'm also having this issue. While restarting the game does fix this temporarily, the game session invalidates far more often than it used to. I've had to revalidate my session 3 times in one day whereas before I would only run into this issue once a month.