Can't I butcher animals killed by spike traps?

I'm only able to haul them to a shelf, where they keep decaying until they become a skeleton

I just had two man eating raccoons killed, one by a shot, another by a trap

I was able to butcher the one that was shot , got the leather and meat from it. Butcher table has bill to butcher forever

But the other one I can't do anything with it

I have another dozen skeletons on my shelves that might have had the same problem

no mods enable, just base games and all dlcs

First time playing this, so I'm still learning the ropes