Looks like I figured out on my own through no help from Pandora or Alexa ... that Alexa can no longer find more than 25 stations. And it also appears to be finding them in chronological sequence meaning the oldest stations are found first and the newest stations are not coming up. If you delete all stations in excess of 25 it should solve the issue. If you want to keep more stations you may need to throw Alexa in the garbage.
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