Hello. I found bug. When i use /skinupdate, skin not updated, and when i reset skin (/skin reset) skin too not updated. She remains same, when i set. l'm doing something wrong?

http://pastebin.com/reRJ5Bws

As I can see ID in the database does not change, when i used command. And information in skinData has duplicate
http://image.prntscr.com/image/ba5bf25163d644758edd4d4c6e4e695e.png.

Which version do you use?

Last

Do you use BungeeCord?

Yes.

And information in skinData has duplicate

because it could be a updated skin

As I can see ID in the database does not change,

The id in the skindata will never change. Take a look at the preferences table.

Is your server in online mode with premium UUIDs?

ava.io.IOException: Server returned HTTP response code: 429 for URL: https://sessionserver.mojang.com/session/minecraft/profile/6fee352611444731b57d4b89eb0d466f?unsigned=false

This means the skin was requested too many times in one minute. So it's ignored.

Do you have ChangeSkin instaled on the Bukkit server?

Offline mode. ChangeSkin on bukkit server? No.

That's necessary for skin updates without relogging. On the project site of Spigot is a little on how to do it.