Wattbike Atom V2 Ant+ ER issue

Hi, first time posting here so hopefully I have the right thread. I’ve an Atom V2 that I was connecting to a Samsung Galaxy4 tablet via bluetooth. After a number of connection drops, I turned off bluetooth on the tablet (it has Ant+ built in) & connected with Ant+. However, when I now select a workout, ERG mode is not used (I can change gear) & there is no option to switch to ERG.
(Workouts seem a bit pointless without ERG).
Has anyone else come across this?