Facebook data (og:title) not found

This is definitely a weird issue. When I try to share my posts via Facebook, it says –

Object at URL ‘https://www.newsledge.com/undiscovered-planets-solar-system-one-study-suggests-12582’ of type ‘website’ is invalid because a required property ‘og:title’ of type ‘string’ was not provided.

The above is from Facebook’s debugger tool

That’s impossible because in the source it is there. And if I deactivate the plugin and reactivate it works just long enough for me to post. Then it breaks again./ Tried deleting the plugin and adding it back to no avail.

Any ideas on what the issue could be?

https://www.ads-software.com/plugins/wordpress-seo/