I created a playlist of all my favorite episodes from the podcast "Fresh Air" a couple of months ago.  I added 16 episodes.  Today, I opened it in the web player, and could not find any of the 16 episodes - even though the description said there were 16 episodes.

I tried adding 3 episodes.  Now, the description says there are 19 episodes - however, I see only the 3 newly-added episodes.

This happens in both my web player and iPhone app.  I see only 3 episodes, when there should be 19.  Why is this?  

Web player: MacBook Pro (16-inch, 2019), MacOS Big Sur 11.2.3 (20D91), Safari Version 14.0.3 (16610.4.3.1.7)

iPhone 11: iOS 14.4.2 (18D70)

Thanks very much for your assistance.