Just wanted to say that when using my Giant Ride sense cadence + speed sensors over native BLE on my Macbook Pro, Zwift would have a hard time finding these sensors, and if it did Zwift would crash afterwards. I picked up the Garmin USB ANT stick, and sensors were paired right away via ANT+ protocol.
I also had to use the extension USB cable even though my laptop was close by and put the sensor right underneath the bottom bracket. If not, sometimes speed would be dropped while riding.
https://www.amazon.com/Garmin-USB-Stick-Fitness-Devices/dp/B00CM381SQ