Episode artwork reverts to podcast cover after episode is fully played (streaming only)

Hi, first of all, I love the app!

For podcasts that provide a unique image per episode, the episode-specific artwork is shown correctly while the episode is unplayed or in progress. However, once I finish listening to the episode all the way through, that individual episode image disappears and is replaced by the podcast's general cover artwork in that spot.

A few details that might help narrow this down:

• I never download episodes — I always stream them directly.
• I tried enabling "Enhanced Artwork Caching" (Settings > Display), but it did not change this behavior.
• I couldn't find any setting in the app or in the FAQs that controls this.

Is there a way to make the app keep showing the individual episode artwork after an episode has been fully played?

Thanks so much!