TComm

Whatever you did in the update 3.11 fixed the problem so very much appreciate it!!

Sorry for delay, here is an example from installing wp 5.7.1 from 5.6.3 and the content duplicating. I have to turn the next gen plugin off soon as we are not using it it’s just not turned off, and this is what it does. It only happens on the pages with the slider from slider ithemes plugin on it, the pages without it does not duplicate the content.
https://www.altrahomedecor.com/cabinets/kitchen-cabinets/

This is also happening on my sites and has been for the last month. Every update it just gets worse and worse. I think it has to do with SSL and security but I have no idea how to fix it so I can’t use the plugin. Thanks as well for any advice you can provide.

this EXACT same thing is happening to me! I disabled plugin and it site works. This is the only site I am having this problem on, so not sure how to fix it but we need to use this plugin!

This does fix the number not showing up beneath the thumbnails but the arrows to move between the photos no longer show up at all. Any ideas?

I am having the same problem on a site where we are looking at it in preview mode and if the tags are blank after updating to latest version it shows a complete blank page – turning off the plugin solves the issue, adding description to the page/post solves the issue.. I agree something in the latest version is causing this to happen as it started immediately after updating the plugin.

Thank you very much for fixing this so quickly!

Yes:
WordPress: 3.6.1 (was just about to upgrade to latest but not waiting)
PHP: 5.2.6
MySQL: 5.0.26

Thanks!