¡No os asusteis! No os han robado la cuenta, es un cambio que ha hecho Mojang, presumiblemente mientras hacen algo de mantenimiento en el sv de skins para el nuevo formato.
En el launcher normal sale este mensaje (en el de ftb no, de ahí el susto incial):
Mojang escribió:Minecraft is Experiencing Some Problems
The long-nosed villagers introduced in Minecraft beta 1.9 have become sentient. They have taken over our skin servers and content delivery networks (CDN), so unfortunately you will not be able to change your skins until we fix the problem. We are desperately trying our best to pull the plugs, but we should prepare ourselves to serve under our new villager overlords. Singularity may be upon us.