Hi,
I have some pages using “Custom Headers” but when I try to edit with Cornerstone the left sidebar goes blank and the Custom Header cannot be edited, deleted or duplicated - nothing works. I can however select and edit other items on the page such as text boxes and images.
Also, I can add a new Custom Header to the page but it is not editable either. Can someone please let me know what is going on as I have not experienced this before.