I had the same issue. I opened 5.6 and 5.6.1 and it was like that. Also, all my tools were upside down. I saw someone had a similar issue earlier. I don't think they've worked out the graphics problems for mac yet. I'm waiting for an update to play again. It's a bit frustrating but hopefully they can work out the bug soon.
Posts made by Shade132
RE: Graphic Issue on mac / all ground is black
RE: Alpha 5.5 Stable version Bugs
I'm running it on my mid-2014 MacBook.
Whenever I try to go underwater, the picture freezes. By that, I mean I am able to move around, I can see my inventory and can tell my avatar is moving based on the coordinates but the visuals don't update. I see the horizon until I jump back out. It was working fine in version 5.4 and I often mined underwater. Now I am not able to do that.