This seems to be because the latest post is sharing a link, and is not a normal status message or picture. On my test Facebook page, I just shared a link and looked at the data coming back from Facebook. There were no entries in the list for the share, just my other message. This may not be the answer you're hoping for, but it doesn't look like JFBConnect can get that message. Facebook is excluding it from the stream data that we're pulling.
Thanks for letting us know what worked for you. Not sure why those steps are necessary, but may have just been a hiccup with Facebook in scraping your site that you fixed by using the Open Graph Debugger.
Hopefully you won't run into it again, but if you do have issues, just let us know.
Hi Alex, now everything works very well and mu client is very satisfied.
I set an OG default image for every page, I mean one for all. I do in this way: publish a new article in the site. Copy and paste the link in FB page. Often no image is shown, probably because FB didn't scan yet the page. So I use the devolep tool to scrape the new page. After that if I paste the link the OG default image is shown and I have a chance to load a nee image. I prepare an image with this size: 640x345. For me now is a standard image with a nice background. I paste the image of the article in the site on the background using a an image editor. And that's it. I upload an image always with the right size, no matter how is the size of the image in the article in the site. It seems a long process, but the time is very well spent.