I\'m trying to create a custom open graph story to Facebook but I\'m having some trouble getting the og:image
to show properly. I\'m using a 1200*630 sized imag
Be sure to have your image at an 1.91:1 aspect ratio. Facebook also notes that images for game app stories appear square, but I'm not sure from your information above if that applies to your situation. GL
It shows the 1200 X 630 image on retina screens only.
Open Graph Stories Images appear in a square format. Image ratios for these apps should be 600 x 600 px.
from Facebook sharing best practices