Suspicious Marble is nowhere to be found

I searched the surface 3 times now just to make sure I wasn't just imagining this and turns out that I was right, not a single piece insight. I was told that the Suspicious Marbles are always on the map somewhere and I've seen em on other servers so I know the ps4 version isn't behind in updates and my game is on default, so why don't I have any? Is there another way to obtain these sketches from tumbleweeds or does fighting the Rook, Bishop, & Knight only trigger the sketches to spawn from tumbleweeds?