WordPress 5.6.1, which many sites auto-updated to, has introduced a bug that makes it difficult to save a post. A temporary patch has been created to address the issue but it’s not an official update to solve the problem.
Changes You Made May Not Be Saved
A bug introduced into the latest version of WordPress, version 5.6.1 causes an alert to pop up when attempting to navigate away, regardless if the post has been saved or not.
The bug was reported in a WordPress support page:
“I am getting the pop up “Leave Site? Changes you made may not be saved. All the time, if I change a page or not,…