Okay, I've since rolled back the latest update of Powerpress, but on the page at:
http://lifelinecoaches.com/leadership-lifeline-online-radio/ there are teaser posts and the player showing properly.
You have to scroll down to the teaser posts and see that they include the player plus when you click through to the article, again, the player shows.
Well after upgrading to 6.0, The teaser posts disappear with the upgrade to 6.0 (see screenshot below):
http://lifelinecoaches.com/imgs/screenshot.jpg The 'full article' view shows the player.
I asked my developer and he told me to ask you the following:
"why is it not working (showing the "me-cannotplay" class) on one page and not the other" (the "other" being the screenshot link after upgrade).
Hope that means something to you. Thank you in advance for your help.