With the built-in SEO enabled and no other SEO plugins activated, and the default built-in social sharing enabled and no other social sharing plugins activated, and the demo installed for this theme, and using Ørestad Street Art Competition project as an example :
If I click the facebook share icon at your demo page (https://northeme.com/demo/reframe-plus/project/orestad-street-art-competition/), then the resulting facebook sharing information looks great – it includes the project picture, title and details – perfect.
In my installed demo, if I click the facebook share icon for this project, or any other project, the sharing information is just showing my main website logo, tagline and url, instead of the project picture and details.
I tried using Yoast and disabling the build-in SEO, but no difference. Any guidance/help would be much appreciated!