Unable to remove columns from report

(imported topic written by SystemAdmin)

We created a report based on a custom analysis that was working for us. Due to some changes in our site structure, we did a custom copy of the analysis and activated the new analysis and deactivated the old one.

Now in the report, I had to re-add the columns (5 of them) and I have 5 other columns with no header text and all showing for the data. When I click the Edit Columns button, I do not see any listing for the old/blank columns.

I can recreate the reports, but I would like to see if there is a simple thing to do here for future reference.

Thanks