I’ve conducted 3 tests this evening in an attempt to identify the issue.
First off, I created a custom workout; 2 mins warmup, 5 mins free ride, 2 mins cool down.
Ride #1: Wattbike paired with the Zwift App on my iPhone 8 (not using Apple TV)
Result: ERG mode kicked in for the full ride with enough resistance to allow me to push it as hard as I could throughout the free ride section.
Ride #2: Wattbike paired with Apple TV via Bluetooth
Result: ERG mode kicked in for the warmup & cool down but I was left spinning out during the free ride section. I could switch ERG off & move the orange bar up/down but it made no difference to the resistance on my Wattbike.
Ride #3: Wattbike paired with Apple TV via the Companion app
Result: ERG mode kicked in for the full ride with enough resistance to allow me to push it as hard as I could throughout.
Conclusion: Ride #2, the connection via Bluetooth is the problem.
@Gerrie_Delport - can you please confirm that all three scenarios above should definitely allow me to use my Wattbike correctly with Zwift? Can you also confirm that this will now be passed to your dev team for a fix ASAP?