Hearthstone (android) through the Amazon Appstore (uk) does not update properly

Hi all

Since last night’s update Hearthstone (android) won’t update correctly through the Amazon Appstore. I uninstalled and re-installed a couple of times and its still broken through the Appstore. It works ok when I re-install through Google Playstore.

Reason it needs to work with Amazon Appstore is so that I can spend amazon coins. Anyone else experiencing this issue?

Thanks