When I create a view in ApliqoUX, I get the headers duplicated. Reports on dashboard don’t seem to have this issue.
I think it adds the attribute that is used for the column grouping above the element name. Do you have anything populated in the “Checkbox Group Name” field in the view definition for that dimension, or a “Group” attribute?
That was group attribute. I removed values from there, now I see only one single header.