Can't delete skins ("Unable to delete skin")

I was trying out some new skins that I made on the Minecraft launcher. When I went to add a skin, a copy of that skin appeared on the skin library and when I tried to delete said "copy of skin" the launcher said "Unable to delete skin" Also, when I add new skins, it makes another copy of the skin that I CAN delete.
I've already tried ending the task, restarting my computer, and reinstalling the Minecraft launcher.

In summary, I am stuck with two skins that I cannot delete.
I'm hoping it's a bug, but I'm not too sure.