Why does the entire filter section disappear while dragging Price Book attributed onto the filter section?
The Price Book attributes paramname is not defined correctly in mssql_dbmodel.xml. It is defined as paramName="Credit Customer_CUSTOMERPRICEBOOK". Please alter the param definition as paramName="Credit_Customer_CUSTOMERPRICEBOOK". Henceforth, please ensure that all param names are defined with _ (under score) instead of a space. This should solve the issue.