His image shows it is connected as Controllable.
Just for the grins of it, since you are using Bluetooth (based on your photo), try connecting through the Companion App. If you have not already done so, install the Zwift Companion App on your phone and link it to your account. When you get to the pairing screen, start the CA. Once the phone CA is connected to Zwift, in the upper right corner of your computer pairing screen you’ll see a cog icon (at least that is what is appears like on a Win10 PC, don’t know what it looks like on other device). Click it and change from “Use Built-in Bluetooth” to “Use Zwift Companion”. See if that works for you.
If that does not work, next test would be to install the Zwift full app on your phone and see if running Zwift on the phone connect correctly and controls the Kickr.
These are each steps to try to narrow down where the problem may be.