Gallery and single-image alignment goes out the window whenever WP SuperCache is installed or Page caching is enabled in W3 Total Cache. (I’ve tried both, individually). Disabling page caching or uninstalling WP Supercache fixes the problem.
Not great for the performance of my site, mind you.
Currently unable to add images to posts using the Emphaino theme.
Also, experiencing fatal errors when the NGFB Open Graph plugin is enabled. However, this only seems to affect new gallery items, not pre-upgrade items.
However, with reference to one of the posts above. Photoswipe is still working for me; however it was a bit flakey before the update. I found that disabling and re-enabling it usually helped.