This has happened once before, but the previous time it cleared up very quickly -
Basically, when I go to the arcade, and click Tier 2 so that I start in Moorcroft Manor, the entry button is greyed out. I've got all 3-star gear, I've been in T2 many times, this is in no way shape or form a question of not qualifying to be there... it just won't let me go for some reason.
Is this a bug? Is there something else going on I'm not aware of? Any help would be greatly appreciated.
You might not have enough crowns to pay the fee to jump straight to Tier 2. The crown fee only applies to the gates where you never reached Tier 2 by traveling through at least one of its Tier 1 floors.