Also encountering this issue. No amount of changing skins, relaunching, or anything will work. I can still use the Minecraft.net website to change the skin and it will still appear in the launcher though. I simply cannot use the launcher to change it.
Thanatos
Also encountering this issue. No amount of changing skins, relaunching, or anything will work. I can still use the Minecraft.net website to change the skin and it will still appear in the launcher though. I simply cannot use the launcher to change it.