Teleportation facing bug

Everytime I place a repeating command block that teleports a specific entity to a specific location, the "facing" part of the command (and all of its variants) don't work. Exaples (with photos):

 

-Photo 1: The command block has the next command: "/tp @e[type=sheep] ~ ~0.5 ~ facing 0 0 0". As you can see, I'm not in 0 0 0 coordinates and the sheep is looking in my direction.

 

-Photo 2: The command block has the next command: "/tp @e[type=sheep] ~ ~0.5 ~ ~ ~". You can't see it in the photo, but the sheep is changing the direction where it's looking as it normaly does (instead of looking allways to the same direction).

 

P.S: There's only one single sheep in this world, I'm only changing the command block.