I am sorry to hear you are having issues. Can you help me understand a bit more?
What error are you getting when requesting more records?
Can you include a screen shot of the attributes that changed in Tableau?
For the Navigational attributes, Tableau does not support any of the Characteristic attributes including the Navigational attributes. If you would like to see support for this feature in the future, please submit an idea here: http://community.tableau.com/community/ideas