Mastery set page says I should have Internal Power but I don't

[Piotyr]

Ok I'm trying to get letons super star personal mastery set with muscle training, Internal Power, his personal mastery and whatever other, it says "its an basic mastery you have" but I do not have Internal Power. Also if I put all but one of the masteries it still doesn't show up in my almost completed mastery list. Is this set bugged?

[Hemmingfish]

Internal Power is a Martial Artist mastery, not a Superstar mastery. You can't use it on Superstar.

[Piotyr]

I see thank you