In an existing site the masonry blog layout suddenly stopped working. Nothing new installed or updated, it suddenly shows the loading animation but doesn’t complete. I noticed also that when checking in Customize, I couldn’t navigate to an archive page to check, the menu links don’t work to preview. When I set the layout to standard, the navigation works in Customize and the posts load.
It’s currently set to standard layout, as this is a busy live site. Please advise how to troubleshoot this. It’s now been updated, but situation is the same. Also, this being a live site it’s not an option to turn on/off plugins that haven’t interfered previously. Thanks.
