Today I dealt with an interesting WordPress problem. I logged into a WordPress site to edit a post and instead of seeing the post I saw this:
The post wasn’t visible. There were no editing icons. And yet, the post was there and looked fine when viewed as a site visitor.
I discovered the problem was a Sucuri setting. I’d hardened the wp-includes folder and in this case it caused the editor to not load. (This is unusual. I’ve hardened the wp-includes folder on numerous sites and have not had this happen.) I reversed the hardening and the editor became visible. Problem solved!