Whuh oh. Turns out Jake's 'Doge' hat conflicts with Mr.Nobody's 'Doge' hat. I had planned a change to how the hat naming would work which would fix these conflicts, however its gonna take some time to write up. For now, Mr.Nobody's is being loaded first, thus preventing Jake's from registering. So if you have both enabled, you wont be able to use Jake's doge.
That'll probably be the main fix next version.