We can notice that, when more than 6 fields are placed in columns or rows, by default, the first two fields are concatenated by a comma.
(in the above picture, fields ‘Region’ and ‘Country’ got concatenated)
To avoid this, select Analysis > Table Layout > Advanced
A new window “Table Options” appears. On the new window, increase the maximum number of rows or columns as desired.
Note that Tableau restricts the maximum rows or columns to 16.
