Skin does not show.

Whenever I get on Minecraft, my skin does not show for me, but only for other people.

I had expected for my skin to show as normal when I got on after changing it.

What happened was when I logged in again it showed either Alex or Steve instead of my new skin.

Steps to Reproduce:
1. Start up the game.
2. Enter a world or server.
3. Steve or Alex show.