Thumbs on Modules/Blocks settings not loading

When I go to Newspaper > Theme Panel > Block Settings, and I click on “Thumbs on Modules/Blocks”, the box does not open at all. It constantly indicates that it’s loading, like so:

I wanted to access this menu to enable the thumbnails required for Related Articles, however I am unable to load the menu at all. I should note that this is the only menu that does not open: “Category tag on Modules/Blocks” and “More info on Modules/Blocks” both open fine.

The Newspaper version installed is the latest, 9.7.2. I’ve tried disabling all of my plugins.

I’m unsure if it’s related, but Site Health indicates the following critical errors:

– The REST API encountered an error
– Your site could not complete a loopback request

With the following message for both: “Error: [] cURL error 60: SSL certificate problem: self signed certificate in certificate chain.” Updating the version recently, I had to manually install the plugins because this error caused the dashboard updates to not work.

My hosting service looked into it, and concluded that this could have something to do with the Newspaper theme (the site is running the latest version of PHP).

• This topic was modified 7 years by Paradoxer.

My system status does not indicate anything off right now. The PHP Version is 7.3.5, the max_execution_time is properly set, the max_input_vars is at 5000, and SUHOSIN is not installed.

The WP Memory Limit is properly set, and WP_DEBUG is false.

The issue is not that settings are not being saved. It is that the “Thumbs on Modules/Blocks” menu item in that screenshot cannot be opened at all. I do not even see the settings underneath that option. Otherwise, I can open all other menu options, and properly Save Settings.