With the new patch, double carving corpes when they are completely looted and devoid of any items, makes them disappear. Regular krakens that come up with special fishing nets, don't disappear when double carved.
Potentially we could add that, but only for the player that is linked as the corpse "owner". Otherwise this would allow for some interesting trammel style griefing.
I would request that if I try to skin something that cannot be skinned twice, it would also disappear. (i.e. Arctic Ogre Lords, etc.)
This is the same problem as the Krakens mentioned by koncept -- when theres nothing to skin from the hide in the first place, its not allowing the carving to clear the body.
Yep, That is actually the problem. I only designed it to remove the corpse after the initial carve was successful. This will be resolved in patch 43 for any no resource corpses.