I am a new player, and I've bought a Final Shape expansion when Episode 2 came out. I am able to play the current episode 2 ONSLAUGHT. But I am unable to play ARENA: BREACH EXECUTABLE from Episode 1, it tells me that I need to own Destiny 2: Episode 1, even tho I do. Is this a normal thing, that if I am "late" when I bought the Final Shape expansion and Episode 1 was not the main thing then, that I can't play content that is still up and running for the other people that have the same DLC as I do, or is this a bug?