@991krs I replied to you privately as you also opened a ticket about it. I’ll also leave a message here in case other people have the same problem. This is likely related to the total number of fields from the edit post/page area which is over the total limit set in php.ini for max_input_vars.
Can you do an update in the front-end view after you enable the “Manage in the front-end” option? There’s another thing you can try. Do the update, and immediately after that, go to “Overview” from the plugin’s menu. If you don’t notice the hardcoded unloads there, it means they weren’t saved in the first place.
Here’s a post from WooCommerce related to the max_input_vars value I told you about. The principle applies to any plugin. Whenever you have a form with too many fields, things like this could happen: https://docs.woocommerce.com/document/problems-with-large-amounts-of-data-not-saving-variations-rates-etc/
PS: A solution would be to have Asset CleanUp fields on a separate edit page within the Dashboard (not together with all the other fields from the edit post/page area). This way, there will likely be no issues when large forms are submitted. This is something in the development 😉
