Update from amazon
I have had an update from our technical team today. They has stated they have now located the root of the issue and are currently working on software updates that will solve the problems you have been experiencing.
These updates will be automatically applied to your device within the coming days and I have asked that if they will take any longer, that I be told so I can in turn inform you.
Once again, thank you for your continued understanding and patience throughout this. It has been a much more in dept fix than we had originally expected and we appreciate you bringing it to our attention.