Try to establish an unique distinct list of A column running accross row 1, then apply proper hyperlink:
B1:=IF(A1="","",HYPERLINK("#"&CELL("address",INDEX($A$2:$A$601,MATCH(0,COUNTIF($A$1:A$1,$A$2:$A$601),0),)),INDEX($A$2:$A$601,MATCH(0,COUNTIF($A$1:A$1,$A$2:$A$601),0),)))
....confirmed by pressing CTRL+SHIFT+ENTER to activate the array, not just ENTER. You will know the array is active when you see curly braces { } appear around your formula. If you do not CTRL+SHIFT+ENTER you will get an error or a clearly incorrect answer. Press F2 on that cell and try again.
Drag accross. Now it is indepedent to AK column. Delete it
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