I hope someone can help me with this problem.
I can not edit post older than one month. Every time I hit save button, nothing is changing. I have no problem with newer post, I can edit it easily.
I have tried to disable all plugin, comment out autosave function (
wp_enqueue_script('autosave')) in post.php and post-new.php, disable visual editor from my profile. Still can not fix the problem.
I also try to edit in Chrome and FireFox, same problem still happen.
This is my site: DesainDigital. I'm using latest wordpress version.