portal not displaying related record
I'm having difficulty displaying a related record in a particular portal -- there are a number of tables in between, which I expect is causing the problem. Very simply (please let me know if more detail is necessary):
EXPENSES is related to PERSON.
PERSON_AUTHOR is a another instance of PERSON.
PERSON_AUTHOR is related to BOOK
BOOK is related to CONTRACT
CONTRACT is related to PAYMENT
I'm trying to dispay EXPENSES in a portal on a layout based on the PAYMENT table.
Is there anything obviously wrong here?