PlexAmp Sonic Sage playlists shows songs not in my library

When I create a playlist using Sonic Sage most of the music it gives me is not in my library.

This happens whether I have clicked ‘Include external media’ or not.

Plex Server Version 4.147.1

Plexamp Version 4.12.4

I’m using the latest PlexAmp on my iPhone 16 pro max running 18.6.2

I am using an openai api key that is working.

OpenAI doesn’t know what is in your library.
It’s a feature which became a little bit obsolete, when support for Tidal was removed.

Oh shoot. Really? That seems so bizarre.
Thank you for your response.
I guess I’m a little perplexed as to how to use Plexamp then in a way that’s fairly easy.
Any suggestions on where to find answers for that?
I know people love it, but I find it difficult with 40k songs to get ti what I want to hear.