UNABLE to save skin/unable to dupelicate skin

是的，我也无法复制和添加我的皮肤在启动器中

Hello, we are aware of users having this problem and tracking this as MCL-14579.

what to do its not working what i need to do to the thing resolve

As mentioned in MCL-14579 you could update your skin on minecraft.net

i know but libary working on the launcher