Mavic Air Not Linking

Had some major issues linking Air to RC, could not get the sensors to activate, had a grey screen with all icons on, less red sensor icon, ran down a number of batteries and the charger, eventually uninstalled the go4 app and re installed all appears good now, will give a full test later, anyone suffered this before??

There was this thread : Remote control not syncing : not identical, since reinstall didn’t help.