What you did is first select the range C13:C17 then applied the formula on this range as one would do with formula returning arrays.
In fact this formula does NOT RETURN an array, but only a value.
This implies that the RC-2 does not adapt and stays looking for the same value thus giving the same result everywhere
In this case, you should enter the formula ONLY in C13, commit it with Ctrl+Shift+Enter in the formula bar and THEN pull it down.

Your use of RC notation also obscures the fact that the reference to EMPL ID changes on each row. RC-2 visually stays the same when pulled down, so, one would not see that the cell reference stayed unchanged in your example.

To be honest, I am active on several forums since many years and have NEVER seen anyone using the RC notation in formula, except of course for VBA, and I would assume that if it was more efficient to do so, lots of MVP ' s would, but, they don't.

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