Error: Audible account already setup

I attempted to add Audible as a music service (I likely had added it before, perhaps years ago.)

1. On Amazon’s authorization page it says it was successful.

2. When I return to Sonos (I tried it on both iPhone app and Macbook App), it says Error: This Audible account is already set up on your Sonos. No need to add it again. But it’s not in my list of music services.

Any ideas?

I have the latest versions of the Sonos and Audible apps on my phone, and have the latest updates to the ‘controllers’ (from the desktop app).

Here’s a short video if it helps. sonos audible.mp4