Same issue for me here on this page https://camdencab.ibtsonline.co.uk/about/campaigns/
I put code for another timeline in the footer widget a few weeks back and it works fine there – just not in a page or sidebar.
Thanks but this hasn’t solved the issue. I tried playing around with the value but this didn’t do anything. When I removed some of the code I mentioned, it solved the issue but obviously I want to keep the formatting.