We're currently investigating an issue where the cadence value from Tacx smart trainers can drop to 0 mid-ride and stop being read by Zwift. This only seems to affect Bluetooth native connections.
So far, we've seen this affect all Tacx trainers, including:
- Bushido Smart
- Genius Smart
- Flow Smart
- Neo Smart
- Vortex Smart
Alternatively, if you purchase a separate cadence sensor, you can get a real cadence reading (any cadence coming from a trainer is "virtual" estimated cadence because it's not measuring your actual pedal stroke).