Windows 10, Java 7 Update 80 (compilation 1.7.0_80-b15)
Sorry for my English but would translate with google translator.
The screenshot is of the nether roads, closed and impossible for the enderpearl teleported me like 50 blocks down and 100 in the other two directions, more or less.
I happened only once in two years playing minecraft, but just now I've thrown a enderpearl in the nether and has teleported me to a place near where I was but totally random (quite a lot away from where I should have teleported) and has me fitted in a block, I've chopped a lot of blocks in all directions (100 or so), I still lost the nether and I can not go home.
I expected to happen was that teleported me to where he had thrown the pearl ender and not where he pleased the game.
What really happened is that the pearl ender teleported me far from my nether roads.
Steps to Reproduce:
1. In survival mode throw a pearl ender in the nether.