Experiencing a 413 error on any and every page/template within Oxygen when trying to save within the editor; saving within the WordPress dashboard still works. We tried to clean up revisions, but it doesn’t even matter if the post has 2 revisions (Oxy or WordPress) it won’t save.
Was working fine and then just abruptly started throwing the 413 errors. No php code added during that time, no JS modified, mostly adding elements and styling.
Any thoughts on what can be done to rememdy this?