I recently went from using android Bluetooth with speed sensor only to android ant+ with speed sensor, cadence sensor and hrm. Since the switch my power in zwift appears to only be able to take on certain values, about 30w apart (see the attached pictures for the before and after power curve of two rides). The issue occurs regardless of the three second or instant power setting (with the three second setting it merely takes three seconds for each jump). Zwift seems to somehow use the nearest power within 30w to the one I’m doing.
Is this a known issue? I’m not sure if it has to do with using ant instead of Bluetooth or whether it’s to do with also using cadence or hrm.