I’m trying to delete a column on a page for mobile sizes but it is not deleting.
I’ve not had this problem on other pages, so I really can’t see where I’m going wrong.
Any help would be much appreciated.
The issue is the Area that you’ve created for the grid itself which is preventing the columns from wrapping as you’d expect. If you edit the grid, you should be able to delete it entirely from the Styles panel on the right-hand side of the Designer: