Thanks for investigating! This is quite a problem for me, as I use different assets/feeds to separate a public and a (secret) patreon feed. I just made a post about this here: Issue with Episodes Assets - Episode appears in disabled Feed!
I’m not sure if there is a fix for this @ericteubert ?
I added some more screenshots here: Assets werden "gesucht", obwohl sie deaktiviert sind - #3 von Simon - Podlove Publisher - Sendegate