I'm sorry that this will be rather vague, but basically I was playing the game, when all of a sudden, the game froze. The game still seemed to be playing as I could still mine place blocks and etc. etc. but the screen stayed on the image it froze on. When I pressed escape or the key to access my inventory my mouse could roam free, so it would let me get out of the game via that option. When minimized then brought back up, the screen would be black, and sometimes it would be black with two white boxes, one in the top left, which overlapped with the one in the center.
Has anyone else seen this issue? I included the log, but it doesn't really have anything in it that seems to be helpful.
I have successfully recreated this in a purely vanilla game.