I clicked to join stage, but nothing happens except a small, spinning wheel in box where I clicked. On a MacBook. Any ideas? Thanks.
It sounds like you could be having some network, firewall, or internet connection related issues impacting your ability to access certain functions in Zwift. I recommend following all the steps listed in this article from the Zwift Support Hub.
If that doesn’t help, please submit a support ticket if you haven’t already done so, and one of our support agents will be happy to take a closer look at this matter. Thanks!