Correcting a formula INDEX + MATCH

The formula I am working with is below - it should return a value based on the criteria selected from drop down menus in A12 & B12 - it works correctly for every menu item except for one. I realized that I missed one position this morning and added it to the reference list. I used Data Validation to build the drop down lists in A12 and B12. I used CONCAT to merge the fields in the reference spreadsheet to build out the factor combinations that would result in an amount. For example.

In A12 the user selects Quality Technician
In B12 the user selects Faro Arm Operations

This combination results in the spreadsheet auto populating the increase amount as .90.

This is working like a charm with the exception of the one position that I added today. It is included in the CONCAT references but I can't figure out why it will not return the amount like the other positions. If I could figure out how to upload the workbook, I would but I am not sure if it's user error or a firewall problem.


=INDEX(Rates!$D$1:$D$61,MATCH(A12&B12,INDEX(Rates!$B$1:$B$61&Rates!$C$1:$C$61,FALSE),0))