To make sure your episode notes look good everywhere listeners can find your content, we suggest you fill in a longer, rich text version of your description in the "Description" field, and then a shorter, 1-3 sentence description in the "Apple: Summary" field which is under "More Options" when you edit your episode. This should resolve the issue.
Here's a more detailed explanation of why that's happening:
Each app and directory has a different way of managing and displaying episode notes, so our platform does its best to thread the needle and make it look good everywhere. There are two fields to consider when editing an episode: the "Description" field and the "Apple: Summary" field (which is under "More Options" at the bottom of the episode form). Here's what they mean:
Description -- This is called "episode notes" in the Apple Podcasts app and appears on the episode's page in the "library" section of the app. Your description supports rich text (bold, links, etc). Most other apps that support rich text will also use this field. Some other apps will display it, but remove all the formatting.
Apple: Summary -- this field will appear on your episode web pages on Apple Podcasts in the browser, and it will also appear in the 'discover' section of the Apple Podcasts app. It doesn't support rich text. It will also *sometimes* appear above the "Episode Notes" section in the "library" section of the app.
Because Apple is a little funky this way, we suggest you put a short, 1-3 sentence description in the "Apple: Summary" field on your episode form which should help with this!