Collectible Card Game Headquarters

Describe the Bug:
1- Sakashima's Student ninjutsu ability is not working(Rules engine never gets active-able).
2- Also Sakashima's Student ETB ability triggers even if you put it on the battlefield as a face down 2/2 creature with Illusionary Mask.
Which card did behave improperly ?
Sakashima's Student

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
2014/02/18: Born of the Gods v2 - DUEL

What exactly should be the correct behavior/interaction ?
1- Sakashima's Student has ninjutsu
2- Sakashima's Student ETB ability doesn't trigger when faced down like any other ETB ability.
Are any other cards possibly affected by this bug ?
-

Just Sakashima's Student, or everything with ninjutsu?

Probably just Sakashima's Student as Mistblade Shinobi works.

I have added a 2nd bug

That's a problem with Illusionary Mask (which has plenty of other ones; I wouldn't have attempted it), not this card.

Fixed ninjutsu in 365e6e3.