When I open a new world, I am in the sky; everything is blue. Then I fall down into the void, out of the world, but I take no damage. Once, I have spawned, I cannot move and I am stuck in a block. Only until I destroy the block I will be released.
My .minecraft file is modded, but only with Optifine. I'm sure this mod is accepted.
Environment
Windows 7, latest Java (I always update), AMD v140 Processor.
This bugtracker is for base unmodded minecraft only.
In any case this is duplicate of MC-2416.