You cant add 3 fallen of albaz with 3 of fallen of the white dragon

So i was buliding a deck can you cant play add more then 1 fallen of albaz when you have 2 fallen of the white dragon

Not a bug.

You can only use up to three Fallen of AlbazandFallen of the White Dragon combined when building a Deck.

https://db.ygoresources.com/card#22127