The Black Wall of Death returns

I was getting a black wall while in Old Tristram ruins. When I first came in the main gates it was fine. I completed the quest items there and went into basement, came out, and headed towards the waypoint and was greeted by a black wall. Mind you I could still walk through it and my mouse still displayed the waypoint label when hovering over it, I teleported back to town and everything was back to normal. I have screenshots if needed, I did see that lag is mentioned in the most recent known issues, but wanted to be sure in case it does not fall under that scope.