A podcast I'm listening has issues in the last few episodes, possibly since the iOS 13 update but I'm not sure.
At some point in the podcast the playing stops. In the "progress view" at the bottom of the app the podcast logo and times disappear and it says "Not Playing". Looks like the app can't decode a specific part of the compressed audio. You can skip the bad part.
Podcast author says he had a few people telling him about the issue, but he didn't change anything in his production process. Is this a know bug in iOS 13? Were there changes in the file formats supported by the Podcasts app?