DESCTY =OFFSET(DesReg_Start,(MATCH(FreightCalculator!$A$14,DesReg_Column,0)-1),1,COUNTIF(DesReg_Column,FreightCalculator!$A$14),1)

This is a guess: you use other named ranges to define DESCTY. Perhaps you use DESCTY to define the other named ranges and that creates a circular reference?