@ubernde I moved your post over to this existing thread: Unable to play full album while on Premium Session
It looks like your account is currently set up with the free service.
The ability to listen to a full length album is only an option when upgrading to Pandora Premium.
It looks like you enabled a complimentary session of Pandora Premium, which allows you to interact with an ad in order to listen to content on-demand.
Because these sessions are funded by advertisements, your account reverted back to your regular service automatically at the end of the session.
This would explain why you weren't able to make it through the full album - your account reverted back to the free service when the session was over.
Hope this helps explain!
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