I had a character encoding issue in a new podcast listing and even though I fixed the issue a few hours later, spotify doesn't list the new podcast.
I already tried several actions to fix the issue:
1. I fixed the character encoding issue. 2. I changed the new podcast's GUID to a new value. 3. I changed the GUID to a new value a second time, this time also modifying the file name and even encoding the mp3 a little different so it had a slightly different file size.
None of these worked, the newest podcast (episode 7) is still unlisted.