Looking for help on binding the DJI FPV Radio to the Air Unit.

I'm building my Cinewhoop for the first time.
I've successfully bound the DJI FPV Goggle to the Air Unit.

When I try the to bind the controller following this instruction ([color=var(--blue-link)]=AT1Pq50XPwzlKC0vWlEGTeDYCnHfkxy_mpjVXXViiklXCsAOQCpSUu9xUipKILxJRB-ctQ0-kCBB4vq3STgahZ6cj0N57V_vU007TZN7q1whVacTzLL3K9xHjL4OwwtVpMpiF3ko2OYmePgsAt3oBESGWJW18EryWMRanC2Pqjl6X05eFV99bQw]https://www.youtube.com/watch?v=nptTbbWKMZs), here's what happened
1. LED on the controller turns blue & starts beeping
2. Press the Link button on the Air Unit. The LED turns Red, then green
3. The Blue LED on the controller does turn green but the beeping doesn't stop
4. I don't see the controller reflecting in BetaFlight.

Would anyone happen to know if there's something I'm doing incorrectly?

I had previously use the controller on the DRL simulator.

Looking for help on binding the DJI FPV Radio to the Air Unit.

I'm building my Cinewhoop for the first time.
I've successfully bound the DJI FPV Goggle to the Air Unit.

When I try the to bind the controller following this instruction ([color=var(--blue-link)]=AT1Pq50XPwzlKC0vWlEGTeDYCnHfkxy_mpjVXXViiklXCsAOQCpSUu9xUipKILxJRB-ctQ0-kCBB4vq3STgahZ6cj0N57V_vU007TZN7q1whVacTzLL3K9xHjL4OwwtVpMpiF3ko2OYmePgsAt3oBESGWJW18EryWMRanC2Pqjl6X05eFV99bQw]https://www.youtube.com/watch?v=nptTbbWKMZs), here's what happened
1. LED on the controller turns blue & starts beeping
2. Press the Link button on the Air Unit. The LED turns Red, then green
3. The Blue LED on the controller does turn green but the beeping doesn't stop
4. I don't see the controller reflecting in BetaFlight.

Would anyone happen to know if there's something I'm doing incorrectly?

I had previously use the controller on the DRL simulator.