title: obiee Cannot find logical table source coverage for logical columns
body: <p>I try to make some changes in the repository of an OBI 11g installation. 
  I have a fact table who counts the positions in the departments.
  I have a department table and a departmentDH table. 
  The department and departmentDH are linked to the fact table with the deptId (both). 
  In the logical layer I have a logical table and two LTS (logical table sources). One for the data of department and one for the data of departmentDH.</p>
  
  <p>When I make an analysis with data of departments, data of departementsDH and the fact, everything goes fine. When I delete the fact in my analysis I get the error: "Cannot find logical table source coverage for logical columns".</p>
  
  <p>Did I do something wrong?</p>