I started the fight with the goblins at the windmill, trying to save the gnome, but, as one of the goblins cast Bane, the screen went completely dark. This has happened before in social situations, but I have been able to fix it by switching to a different character with F1, F2, F3, or F4. I thought it was just loading, but the fight was still going while the screen was dark. I waited for a bit; the music kept playing and you could hear the goblins and other creatures growling. However, there was no visuals. This was with the DirectX 11 version.