Upon teleporting a player relatively, the player's display flickers and their hand jitters. I'm pretty sure this is an unintended behavior.
I believe this was fixed in 14w02a and worked all the way through 14w30c. Then the issue came back in 14w31a, probably due to changes in rendering.
Environment
Mac OS X 10.10.3
java.version is 1.6.0_65
Duplicate, I apoligize. Will remove.
EDIT: I don't seem to have permission to remove. And it appears it has been taken care of, thanks! 🙂