Hearthstone says click anywhere to update. In the redirected page (on Amazon Appstore) there is just an “open” button and no update. If I click it, Hearthstone says “closed”.
I was in the middle of a transaction (waiting for authorization loading screen) and the transaction was completed from Amazon’s side (with Amazon coins) but when I log in from Windows-PC the transaction isn’t made. So, I most likely need to log in again from the specific app, but as I said it asks for update and it doesn’t exist.