Photo Won't Display



I’m using summary with large image.
I created a TC at

and it worked great, so I kept the format but changed the details for another site and the image won’t display

nor here

Any ideas why not?
I’ve read about whitelisting and robots files and max img size, but none of them apply here.


No replies, but I found my own answer:
1st I registered the site with FB’s OG, but the image still didn’t show up, so then I increased the DPI to 300 and then it did, but I can’t say that both steps are not necessary.