I saw the same thing hours later I think it’s a server wide issue
Technically it wouldn't be stealing as Kabam owns your account and everything in it. Maybe they just liked how their items looked in the account that you borrow from them or maybe it has something to do with the multiple other threads on this subject.
Yes, they stole your stash and sold your stuff on the black market
Whoever said it's not stealing is incorrect. If you invest money into a game, and subsequently time, then any content becomes part of that investment. They would have to refund all money spent to that time and would have to prove what you didnt have prior to your first purchase. Other businesses have been sued