MacBook Air 2019
Kickr Core 2019
No companion app connected
No bike computer connected
Same happens to me specifically on climbs: if current workout section at target wattage ends during a climb, the following “free ride” section still keeps the same target wattage of the previous one. Tried disabling ERG in game, stopping and re-starting pedaling, or lowering the target bias but it still remains stuck to the previous section wattage.
All of it ends however when reaching a flat road, with the trainer eventually switching to SIM mode until next section.