No stones around fireplace

I've just realized that the stones around the fireplace have disappeared from my view, even in the crafting window and when I try to place them. Is this intentional or is there something wrong with my game?

Quote from LoneRanger

As far as i remember only the Campfire and Signalfire (or Bonfire?) have Stones around them.

Oh yes, I mixed it up with the campfire. I am tired, lol.