New Post: SPServices.SPFilterDropdown not saving properly

I am currently using this function to filter the items available in a look-up column, which allows multiple values, that points to a parent list. The CAMLQuery works perfectly and filters out the correct items; however, if I save the form after selecting multiple choices from the available options only the first item in the selected list is saved. Anyone have an idea as to why this is happening? Here is my code for the Filter function:

$().SPServices.SPFilterDropdown({

       relationshipList: "{XXXXXX}",
       relationshipListColumn: "Title",
       columnName: "Project Status",
       CAMLQuery: "<Eq><FieldRef Name=FieldName' /><Value Type='radio'>FieldValue</Value></Eq>",
       debug: true
 });