If you are having an issue when you try to share a post on Facebook and the image will not come through try making sure that the image name doesn’t contain any spaces. We had an issue where I work where we had 7 blogs out of our last 8 where the image would not show up as a selection when trying to share. All 7 had spaces in the image name. Once we put and underscore where the space was it worked. So, “my image.jpg” would not work but “my_image.jpg” would. Facebook caches your page scrapes so once you have corrected the image names you will have to refetch a new scrape of the page in Facebook’s developer tools.