Sorry, but I am not able to figure this out. Nothing seems off with your site or your setup, so it would seem like something is not working with WebKit for iOS. Essentially what is happening is that the last image is not getting positioned the way it should be.
The site throws no JavaScript errors, and I cannot reproduce this problem on the demo site either. If either of these was happening I could have tracked down the problem, but in the current situation I cannot.
As an addendum to my previous post are you concerned about the caching of the page (as per your previous topic)?
If the random layout is working for you, you might want to follow a slightly different approach for cache busting. Rather than alternating between the justified grid and the mosaic layouts, keep your layout set to random
and at the bottom of the post just put some random content in HTML comments. Something like this:
<!-- Random number 127623 -->
The next time you are adding an album, just change the number within the comment and save the page.
I just like the way mosaic looks on desktop, but I’ll just switch it back to random since that doesn’t cause any mobile issues.
In regards to cache busting, thanks for the tip. It actually seems to work just by clicking update on the post without changing anything, so we are good on that front.
Thanks for the quick response!