I solved my issue by editing the plugin’s php files
includes/author.php
line 494 line 507
includes/post.php
line 800
to replace with  
This is needed because RSS feeds are XML and is not being processed as a valid character for the author field by Spotify. This seems to be a recent change for Spotify, since the RSS feed for my podcast was working until late April 2026.
I’m putting this here to help anyone else who runs into this issue and to help me when I forget what I did sometime in the future.
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This reply was modified 1 week, 6 days ago by
Dan Greene.
Hi Dan,
Thank you for reporting this issue and for bringing it to our attention.
We have reviewed it and implemented a fix by replacing the entity usage with the actual Unicode non-breaking space character (U+00A0). This should be safer across different contexts, including RSS/XML feeds, while preserving the intended spacing behavior in regular web output.
This change will be included in the next plugin update.
If you are able to test it on your side, we would really appreciate it if you could confirm whether this works correctly for your Spotify feed as well, just like replacing it with   did.
Thanks again for your help and for taking the time to report it.
U+00A0 written as   works as well, confirmed. @ryanmitchell
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This reply was modified 1 week, 5 days ago by
Dan Greene.