When I create a page properties report, "by default", it works just fine and display all the pages from the space, and as many columns as i have properties.
But IF I want to configure it - i.e. modify the columns to display, or their order, or use a filter, the "save" button is greyed out regardless of what options I select, until I add a label 
I don't use labels in this project so that's completely useless.
And even if I add a label at first to "un-grey" the save button, then when I edit again, the button remains greyed-out when I remove the label.
I've tried on Chrome, Chromium and Firefox .

