When I log into my singleplayer world for 20w22a, which was made on 20w21a, it just shows up with a black screen and all I can see is my inventory and whats in my hand slots. Things such as water and campfires are showing up as a greenish yellow. Its also super laggy and is making my world unplayable. I don't know what's causing this. Any help? It would be gladly appreciated.