What happened to the fact that blood would spray on to props

Has anyone else noticed this? Or is just me.
I remember playing Garrysmod a while back and just like any other source game, when you shot an NPC the blood decals would spray onto whatever prop was behind them.
Why doesn’t this happen anymore? Is there some kind of addon to fix this or what?

Hm, I don’t know, but I use some kind of gibmod (in Singleplayer) that makes the body parts go off and it sprays some blood, also on props. I don’t know at the moment about multiplayer, I got to try it out!