My brand new Tacx Flux 2 trainer is updated to the latest firmware and successfully calibrated using the Tacx app but Zwift spin down calibration will constantly fail.
I am not sure if this is related but I also have the feeling that the “inertia” of the trainer when riding on Zwift is not realistic. When I stop pedaling the speed decreases at a much faster rate than it would in the reality, or at least that is what I feel.
Also, the Erg Mode does not work properly when training with intervals. It is very slow to kick in when moving from low to high power intervals and vice versa.
Sometimes I have to stop pedaling completely to make it adapt to the new required power range or else I have to shift gear which obviously defeats its very purpose…