[2 - Finishing the Tutorial Ends in Access Violation]

The crash only happens if the tutorial deck is selected before you create the game.

[PvP game not closed properly.]

This is fixed, right?

[1 - Unproper disconnect hangs the other player(s)]

Are there improvements since the recent update?

[PvP game not closed properly.]

Does this still happen?

[1 - Unproper disconnect hangs the other player(s)]

Unproper disconnects are a known issue and aren't fixed yet.