My Zwift software is up to date. Firmware in Wahoo is the latest. I have restarted my laptop. My husband can pair to my setup with his iPhone no problem. I cannot for the life of me get my MacBookPro to pair.
One idea: Bluetooth devices can pair to only one other device at a time. If your Wahoo sensor is paired to anything else, it will not pair to your Mac.
I’m thinking the same thing as Steve. Turn on Airplane mode on the iPhone to break any lingering Bluetoooth connections, relaunch Zwift, and try again. Let us know if it’s still a problem after that.