Xbox Series X White Artifacts/shapes Appear With Eanos Wagons Only While In Motion

These annoying white artifacts/shapes appear with the Eanos Wagons whenever they're in motion. They are in need of serious fixing because it totally ruins the immersion and they're just so ugly to look at.

Other locos with this problem have been fixed, so please finally fix this regarding the Eanos Wagons.

 

Doesn't make sense. They fixed them for Cardiff, but left these for ages.