I'm in trouble with installing my Live App Testing app.
I already submitted my Apk to Live App Testing and added users to invite as testers.
On my Android phone, I was able to install the app from the invitation and Amazon Appstore.
However, I can't install the app to Amazon Kindle Device even though Amazon Appstore on the Kindle was logged in with the same Amazon account.
It only shows a download button for the Amazon Appstore app.
According to the link, it could be a device issue.
I don't think my Kindle Fire HD 7 (4th gen) is excluded from the device support.
Does anyone know what the problem is?