Morning Star Audio-drama Unavailable?

Does anyone know why the audio drama of morning Star would be unavailable on Spotify?

The content is listed there but has a lock next to the play button. I have Spotify premium and have not exceeded my 15 hours a month of free audiobooks. I am also the only one on the account so the typical issue of family accounts locking out all but the main user doesn’t apply to me.

I’ve read all the books but I like the audio drama as a second “read” through because it provides a different experience. It’s just annoying that I get to the last book and now cannot listen to it. FWIW, I had no issues with Red Rising or Golden Son.