Selling custom Animations based on the Mannequin Skeleton - legal question

I am making custom animations based on the Mannequin Skeleton (Rig done with Maya LT HumanIK). However I would like to also offer those animations on other platforms, such as CGTrader. As I cannot guarantee,that buyers will use the animations (and therefore the Mannequin Skeleton) only within Unreal Engine, what do I need to do as a seller to not infringe any EULA?

I’m sorry but you’re not allowed to ship the Mannequin outside of licensees.