This is easier to notice in third person view.
When facing east/west the camera will only bob up and down;
When facing north/south the camera will bob left and right as well.
MCPE-48223
Walking animation changes based on the direction you're looking at
Resolved
Duplicate
5
(Unassigned)
Unconfirmed
Windows
Windows 10
1.13.0.1 Beta, 1.14.0.6 Beta, 1.14.0.4 Beta, 1.14.0.3 Beta, 1.14.0.2 Beta, 1.13.0.17 Beta, 1.13.0.16 Beta, 1.13.0.15 Beta, 1.13.0.13 Beta, 1.13.0
Retrieved
I found this issue too! Although, if you switch your perspective in the world, it will be fine! I don't know how these bugs keep getting added, but they do...