Difficulty adding value to exclude criteria in formula. Cell with formula returns blank.

Hello

I am using this formula:
=IFERROR(INDEX([43.xlsx]Who_Did_What!$E$2:$E$19000,MATCH(1,INDEX(([43.xlsx]Who_Did_What!$C$2:$C$19000=G3)*([43.xlsx]Who_Did_What!$E$2:$E$19000<>"")*([43.xlsx]Who_Did_What!$D$2:$D$19000>0)*(MMULT(([43.xlsx]Who_Did_What!$D$2:$D$19000={896,872,873,874,875,876,877,878,879,880,905})+0,{1;1;1;1;1;1;1;1;1;1})=0),0),0)),"")

You can see i am excluding values from column D in "43.xlsx",

However i've tried to add "905" to this exclusion list as you can see above, but it returns blank.

I am expecting to see GEFF

905 is an ID number for a function, not a person, i am only interested in people i.e. GEFF

I've attached both sheets used - im replicating solution to a live sheet with real data, attached is a replica

Formula is in J3 of "example 2" & I will copy this to the other yellow boxes in that column

Thank you

You would be better putting any linked sheets within the same workbook so we don't have to recreate the file structure.