I dunno what that new kind of litter was but did you see it send up large enough dust clouds to block vision of the pack?
Apparently not the dust-free kind.
Last week at Daytona they used a new lighter absorbent material to soak up the synthetic oils most cars are using now, the older stuff would not absorb all of synthetic oil and left a film, this new stuff also clings much worse to the plastic films on the windshields.