I installed the updated AMPLIFi Remote on my iPad which is running iOS 9. The FX100 still won't stay connected to the iPad via Bluetooth. Now I need to decide if I want to continue to control the FX100 exclusively with my iPhone, which seems to work fine, or return the FX100 for a refund.
I agree that it is not acceptable that several weeks passed before Line 6 updated their AMPLIFi Remote app. However, I would like to point out that there are no in app purchases available in the AMPLIFi app, so there is no additional revenue generated for Line 6 by the app. In the larger scheme of things, this means that consumers can always expect other business considerations to take priority and resources over the support of 'after the sale' items such as the update of software or firmware. I'm not saying it is right or defending Line 6, I'm just pointing it out.