the BT sport app has disappeared from the home page on my nvidia shielf. Previously a fully functioing version could be opened direct from the home screen. whereas now i can only open a verison of the app by delving deeper into the device menus, and what is displayed looks like its been mirrored from a phone i.e. thin image in the middle of the screen rather than spreading across the whole tv display area. This 'mirrored' version is both too small, and incompatible with the remote.
what's changed, and how can this be rectified