Some SMOLSKULLs don't have the correct metadata (or "features") assigned. There was a famous #64 bug in the very early days of fxhash, where some iteration were messed up; its thumbnail was confused with other projects. SMOLSKULL is the 14th project of fxhash. This specific issue is ofcourse solved for newer projects, but for old projects like it cannot be recovered. Take it as a bit of the history. If you run the token, you see it is still a true SMOLSKULL. These are the bugged SMOLLSKULLs:
SMOLSKULL #206
SMOLSKULL #472
SMOLSKULL #146
SMOLSKULL #654
SMOLSKULL #815
SMOLSKULL #947