When i listen to my playlist it puts the most recent song at the bottom of my playlist and the date added changes to "a few seconds ago." Happens on both mobile and Windows.
Are you sure you are accessing a regular playlist and does it happen with any playlist, or just one?
You could also try a quick reinstallation as that might help. Here's how:
Hope it helps! Let us know how it goes.
Have a nice day.
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