Many thanks @Wayne-TP I have now Reset and re-configured including a re-boot, now all seems to be working again. Exactly why it suddenly became a problem is still a mystery! once again thanks for...

Yes motion detection on and tracking on

@Wayne-TP yes it does work on pan and tilt correction but still will not follow subject.

I successfully installed, set-up the camera and all was working well. 1 day later the automatic Pan and Tilt operation has stopped. I can manually Pan and Tilt from my phone but it will not...