@aga2442 I have a suspicion that this is happening because there are too many fields in the edit post/page area. Combined with the ones from other plugins, they could be too many for the PHP scripts to handle. Can you please check the “max_input_vars” from php.ini? You can actually check the value in “System Info” from “Tools” (plugin’s menu). On that page, look for “Max Input Vars:”. If it’s just 1000, I advise you to change it as soon as possible.
Here’s an article about it which was posted for WooCommerce, but the principle applies to any other plugin: https://docs.woocommerce.com/document/problems-with-large-amounts-of-data-not-saving-variations-rates-etc/
Besides, try to use “Manage in the front-end” and see if you can update the options in the front-end view. If it works fine there, it’s very likely the problem is from the “max_input_vars” value.
@aga2442 have you managed to check it out? Was it because of the number of inputs? It’s best if you test it with “Manage in the front-end” turned ON. This way, fewer fields will be sent. As I didn’t hear from you, I’ll mark this topic as “resolved”. Feel free to continue writing here (to this topic) if you still have the problem you mentioned.
