Changing Post Type frm Post to Episode Removes Post from Podcast Feed

I’m updating an old podcast site built in WordPress using PowerPress. All the podcast episodes were created as Posts. The theme I’m trying to set up is expecting the episodes to be post-type = episode. I’ve installed a plugin (post type switcher) to change post types. However, when I change the post-type to episode, the post disappears from the podcast RSS feed. (PowerPress 8.4.6 and WP 5.6)

I’d appreciate any advice.

TX