The page https://reachuk.org/a-man-with-a-van-blog/ contains a gallery (below the blog archive) built with The Grid. If I use Chrome to click through the images, the first one displays OK in the lightbox but the rest more than fill the screen - they are zoomed all the way in. On Edge, it works as expected.
This is a new problem - but I don’t know whether it arrived when I updated WP to 5.6, or X to 8.x.x.
I’ve tried changing the lightbox from The Grid’s native one to Foobox(v2) but The Grid doesn’t recognise that Foobox is available (even though Foobox is activated and working with images).
Here’s how it should look (from Edge):
… and how it looks on Chrome:
I have tried clearing all caches. The problem still occurs in an Incognito window.
Thanks for your help.