I just realized that if I used a command to summon an item frame with a certain direction, it will only be summoned on a block facing north. I have the command:

/summon ItemFrame 160 58 -599 {TileX:162,TileY:58,TileZ:-599,Direction:2,Item:{id:filled_map,Count:1,Damage:8},ItemRotation:0}

However this doesn't work. Pretty sure this is a bug.