Sprinting

What I expected to happen was...:

Sprint in the right direction.

What actually happened was...:

I was sprinting forward an when i attempted to go to the left at the same time, it didn't worked, while doing this with the right works

Steps to Reproduce:
1. Sprint forward.
2. Then press the key to go to the left but without releasing the sprint.
3. Release all the keys.

4. Do the same steps but replacing "left" by "right".

5. Compare the two experiences and correct 1 of the 2 to get the same result if you do the experiences again (please correct the left).