Strange. Could you click on solver and see if setup is changed i.e

target cell should be $AJ$xxx where xxx is the last row number with data in the AJ column. All the other parameters should be change accordingly

"AJxxx < = "AExxx" and so forth. This should indicate that the solver loop is working.

As for the data change could you upload a small sample file say a 100 rows so that I could do some testing.

Alf