There are two wandering animals in the Merrymount (Victorian community region) common game prizes. They are Chikkin v1.0 and Lil Bacon v1.0. On setting the animals to roam, they throw a script error "Texture not copiable" and the eye texture disappears (it turns into the blank no texture). These eye textures are in the contents of the object and have been set to no copy.
The easiest fix is to make the textures copy. The UUIDs could also be used in the script instead. Either way, my animals currently have no eyes and are very sad