Ok, that wasn’t using the code button, but formatting appears to be usable.
So, this is pasting that into a Custom HTML block, after fixing the quotes since it wasn’t presented in proper code format: https://d.pr/i/NVrK53
The result saved, but did not render. It did leave space though: https://d.pr/i/1aBHtJ
Browser console reports the following:
GET https://html5-player.libsyn.com/embed/episode/id/ /height/480/theme/standard/thumbnail/yes/direction/backward/ HTTP/2 500 Internal Server Error 73ms
Which leaves two possibilities:
1. The code is not formatted properly. Please paste it again using the “code” button above the reply field, as originally requested.
2. Something is wrong on the podcaster’s end.