Whenever I join a server, player's skins are not showing up. They are just the default Steve or Alex skin. My skins works (on 1.9 and 1.9.1 only. Doesn't work on 1.9.2). I've tried updating Java, updating my drivers, changing the video settings in-game. Nothing has worked. I contacted Mojang support on Twitter and they told me to create a ticket here.

The problem has been like this ever since 1.9 came out. Skins work just fine in 1.8, but as soon as I updated to the 1.9 versions, I can no longer see other player's skins.