It sounds like the ‘controllable’ trainer may be paired to another device. I had this when I switched between an iPad and iPhone. The trainer was waiting for data from one but I was using the other. Switch off the trainer and make sure the apps are closed to clear.
On other occasions I’ve also thought I was in ERG mode but was in incline mode for workouts. I always have the companion app running now to check the mode.
It sounds like the ‘controllable’ trainer may be paired to another device. I had this when I switched between an iPad and iPhone. The trainer was waiting for data from one but I was using the other. Switch off the trainer and make sure the apps are closed to clear.
On other occasions I’ve also thought I was in ERG mode but was in incline mode for workouts. I always have the companion app running now to check the mode.