Prior to the patch, my cloak (model number 1) used a black color for the exterior and a red color for the interior color. Now, upon shapechanging into and out of a form, the entire cloak defaults entirely to the interior color. This did not occur with the last patch, where my cloak would use both color 1 and 2 on the cloth section and persist through shapechanging.
I imagine it does the same thing with stoneskin vfx as well.
I'll include a screenshot when I next can.