Slice with lookup function in row filter expression

[Michel_van_Ruij]

and([pest]=LOOKUP(“1”,“choose pest”,“match”,“pest”),[crop nr]=lookup(“1”,“choose pest”,“match”,“crop nr”))
This formula is correct according to the expression test.

But when this slice is used to filter data in a chart, the chart returns empty and says “no data available”.

I want to use a detailed view where 2 columns are shown from table 1 to slice table 2 with data to show in a chart.
How to make a working row filter expression for this?