DISCLAIMER: I didn't make the model or the skins. I just fixed some bugs that I found on my machine, and that some other people have had. And I tried to make it easy to switch between the different skins.
NOTE: The first screenshot shows the bug from the original release 7 months ago (the first 5 models).
EDIT: The new reskin pack of the same 5 models still has this issue on my machine.
The second screenshot shows the bug from the recent release from Syco.