Best I can tell, this issue began with the 9/30 update to ZCA (Android). The app will find the TreadTracker but never displays or transmits a speed to the desktop app (Win10). I’ve tried a Pixel 2 as well as a Samsung S6 with the same result. The iOS version of ZCA and the beta version of the Android Zwift app all pick up the speed as expected. I’ve also used the Android Wahoo Fitness Utility to verify that the TreadTracker is working properly.