Blender 2 in clouds 2 adds mud spots outside the main mud mass on the skin texture, where as blender 3 and the texture map are supposed to be seperated by clouds4 but are blended....and there in lies my troubles.....lol... (and no if i remove the bias on clouds4 i dont get the more random nature of splat that i want, so it stays)
And  hborre is correct they are not connected (well only via clouds2 in a roundabout way)

Getting old and still making "art" without soiling myself, now that's success.