I just updated to 1.10 in hopes that you had fixed this issue. Apparently Mojang can add a bunch of crap to the game but they are unable to fix the problems that they constantly create. I can't  access my world because of an earlier reported bug with End Gateway portals. Why haven't you fixed this in 1.10? Paying customers, myself included have been locked out of their worlds and yet you find it priority to update the game with items that can't be used until 1.11. I've tried to be polite about this and have been extremely patient, but now I'm pissed. Fix the damn game.