The formula in what is now F11 must have referred to another cell than what is now E11, for it is
=IF(#REF!="","",VALUE(LEFT(#REF!,3)))
If I change this to
=IF(E11="","",VALUE(LEFT(E11,3)))
the formula returns a blank. I changed the formula in G11 accordingly, and filled up and down.
Book1.xlsx
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