Unable to play as a support since season 12

Whenever I enter a role queue match with a support role selected (doesnt matter if its quick or competitive), I get a large message “DOWNLOADING UPDATE” over the whole screen. It stays here forever and I can’t play. I have already tried restoring the game files and reinstalling Overwatch completely, it did not help. I can freely play on tank and damage roles and I seemingly don’t have any bugs with Juno appearing in my games.

UPD: I got kicked from like 4 games and on the 5th try it… Finished “downloading”, apparently. So I can play as a support now, after non intentionally throwing for a while.

Just a thought: Do you use an SSD? For your system partition and wherever your Overwatch is installed.