Farlands Are INVISIBLE + Walking Into Them "Disconnects" You From a Single Player Game

Far Lands are invisible and you get an error if you try to walk into the farlands and you're disconnected! This was tested on more than one world and I restarted Minecraft more than once to see if it still happened.

To Recreate The Bug Watch My Video Of It Being Done:
https://www.youtube.com/watch?v=eV9Q41kjLX4&feature=youtu.be