I have 2 sites both using same X theme and almost identical. millhousecaravan.co.uk and harvestmill.co.uk - all up to date.
They have the same plugins with the exception that harvestmill has Slider Revolution additional to the list. When I try to use Cornerstone to edit a page in millhouse I get to a page with the cornerstone logo in the centre and my 7 pages listed on the left. If I then try to select the page I want to edit I see the blue marker expand across the top of the screen & the logo pulsates 9 or 10 times and then nothing happens.
On harvestmill I can access the pages to edit - did notice they have notes like “Classic Elements” that I haven’t noticed before.
The fact that the two sites are responding differently seems odd to men so I thought I’d check if that perhaps points where to start?