Hi, I am not sure if this is a bug or intended, but I found out that clients can consume durable+stackable items. Perhaps the API is treating stackable = consumable?
Well, it's not a huge deal for us since we would never present that option to our users, but people that snoop the Playfab APIs could do it. And while that is technically also not a problem for us (they would only be punishing themselves), I think it might be weird that it's allowed.