Continuity Camera not working with my iPhone 6 Plus
I have an iMac working with the new Mojave OSX. My iPhone is on iOS12. I have been trying to use the new Continuity Camera facility without success. Briefly I have both on the same WiFi network and Bluetooth is enabled and working on both devices i.e. connected on my iPhone and Connected to my Network on my iMac. Handoff is enabled on both devices. When I try to import from Pages on my iMac by selecting my iPhone the Camera App does not open on my iPhone. Eventually it just times out. What makes it strange is that using the exact same setup with my iPad works perfectly.
Can anyone explain or suggest a way forward? Many thanks for any help.
iPhone 6 Plus, iOS 12