I’ve updated my max_input_vars. I changed it to 3000 and didn’t have any luck so I bumped it all the way up to 5000 and it still isn’t saving completely. I can assign it the menu location through the manage locations tab like you did but it’s not saving the complete menu. It’s leaving off a couple of items. I can add them and when I click save it reduces the number and saves.
Were you able to take a look at this?
Am I reading correctly that I basically need to add
define( ‘WP_MEMORY_LIMIT’, ‘128M’ );
before this line? require_once(ABSPATH . ‘wp-settings.php’);