I looked for this on here - couldn't find anything related to it....
Default movement control is WASD
W - Forward
S - Backwards
A and D - Strafing (Left and Right)
I'm not sure why I just now caught this... but I switched to 3rd person (for best view) and looked straight down....
If you Press W - your body looks like you're walking straight
If you press A or D to move left or right - your body moves diagonally in that direction
However* If you press S - it looks exactly the same way as if you're walking left or right....
If you start to walk straight (pressing w) - your body readjusts to move straight as well...
Moving backwards (pressing S) shouldn't be in the same movement as left or right ...walking diagonally (most of the time I saw it looks like you're moving left - but sometimes it shows right movement as well)
... even if you're exactly lined up with yaw and pitch... and are moving perfectly straight - going backwards, it still displays as if you're walking diagonally.
To me - it should be the exact opposite as pressing W - so I believe this is something that needs fixed.
Thanks, so that's why they made this animation so ugly and unnatural in 1.9.