This url https://www.robdodsworth.co.uk/photography-blog/flint-room-wedding-norwich is the first page I have put together using a stacked gallery block.
All my other blog posts are WP imports and use a single image format i.e outside of the gallery block.
The above-mentioned page is the only one resulting in errors for mobile usability.
If I delete the gallery block and do a 'mobile-friendly' test, the result comes back without any issue. So, it's definitely the gallery block.
IRL - the page looks perfectly fine on mobile. The CSS is doing its job.
My concern is if the mobile usability, as far as Google sees it, will knock the page's SERP.
Goolge appears to be seeing the images at - format=2500w
Thoughts/advice?
Cheers