Table (visual) returns blank result

Hi

My situation: 

Table A has multiple columns including column "Transaction Code".

Table B has two columns: "Transaction Code" and "Transaction Description".  

The two tables are linked through columns "Transaction Code".

Table A has a row which in it we have "Transaction Code= XYZ"

Table B also has a row which in it "Transaction Code = XYZ" and "Transaction Description = ABC"

I then create a visual (table) with "A.Transaction Code" and "B.Transaction Description".

When I filter column "A.Transaction Code" to show value "XYZ" the visual returns blank row.

What could be the issue?

Other settings:

Cardinality: many to many

Cross filter direction: Both

Apply security filter in both direction: No

Thanks

Reza