align stroke option grey out

[Black Panther]

Hi duceduc,
I have done the same Illy tutorial like you i hope it´s the same and i must say i had the same break point like you and cheating to made it complete. i really don´t know if this from the tut. it self, Illy version maybe or from us as users.
I work with version CS6. in your profile you have only AI but not which vesion?
Attached is the finished result what i have done.
BP