The membership plugin seems intent on locking down the store pages for everyone (protected content) excluding admin.
I've created a visitor access level and provided them with the positive levels to access the page and it doesn't seem to work. I'd done the exact same for a member level.
I don't have any other settings set in the content protection area that would create this issue.
Would it be possible that the table in the DB has recorded this content protection somehow and hasn't been able to lift the hold?
I updated the plugins to the latest version tonight for both the membership and ecommerce plugins - based on this I don't believe they want to play nice together.
It might be worth degrading the membership plugin as a back-up test, if you don't have any suggestions.
Any advice or assistance would be appreciated - they were working brilliantly together a little earlier.
Tried the permalinks solution on an earlier forum I read - no luck.