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.

WordPress 5.6.1 “Changes Not Saved” Bug
If the issue is hindering your workflow, there are steps that can be taken. One recommended step could be to wait to make sure that all editing related plugins are fully loaded. Other actions include disabling editing related plugins or turning on Gutenberg.

There is a patch that can be applied to functions.php and lastly one can wait for an official patch.

#wordpress #wordpress 5.6.1 #bug