XL98: Custom Function Is Not Recalculated with Intersection Operator (186686)

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Example of the Problem

1. Save and close any open workbooks, and then create a new workbook.
2. Start the Visual Basic Editor (press OPTION+F11).
3. On the Insert menu, click Module to insert a Visual Basic for Applications module sheet.
4. Type the following code into the module sheet:

   Function Test(a As Single, b As Single) As Single
       Test = a + b
   End Function
   					

5. On the File menu, click Close and Return to Microsoft Excel.
6. Type the following values into Sheet1:

      A1: 1   B1:
      A2: 2   B2: 3
   					

7. Select cells A1:A2, point to Name on the Insert menu, and then click Define. Type Name1, and then click OK.
8. Select cells A2:B2, point to Name on the Insert menu, and then click Define. Type Name2, and then click OK.
9. Click Sheet2. Type the value 5 into cell A1, and then press RETURN.
10. Click Sheet1. Type the following formula into cell A5, and then press RETURN:

       =Test(Sheet2!A1,Name1 Name2)
    						

    The formula returns a value of 7, which is a correct answer.
11. Click Sheet2. Type the value 10 into cell A1, and then press ENTER.
12. Click Sheet1.
    
    Cell A5 displays a value of 10, but the correct value is 12.