This screenshot of Unplayed Episodes is from 2.5.5483. I'm not sure of the sorting of the feed groups. If I could figure out that sorting I'd probably get less confused! BTW - the Long, AM, Music in the feed name is just a method I use to force the Subscriptions list to keep groups together.
The episodes themselves are indeed by date order - sorry about that. I had the Episode Date column too narrow. The episodes that I thought were not in date order were old ones from Jan 2014 not 2015.
One additional feature I would love (I post my podcast wishes to the Wishlist periodically) would be for the podcast filter by group to also filter Unplayed Episodes so I could see all unplayed episodes by each group instead of having to go feed by feed after selecting the filter.
NOTE: Do not judge me by my choice in podcasts!