Hi Mark,
sorry, it seems I duplicated posts as I wasn’t able to remove my previous one.
The issue happens exclusively when I am trying to save my changes on the pages where I used my Divi theme to build them with.
I’ve been chattin with both Divi and Dremohost (where we host our wordpress page) and both are pointing me to your plugin.
Once wpum is deactivated, I have no issue. Although, your plugin is an essential one for my page and I don’t want to use switch to a different one.
