When ever you put the link of any web page in the link box and click on Attach button, then it pick the any picture from your provided web page automatically, and then you write some description about your link to share the link. But when I put the my blogger blog page address, then it does not pick the picture from the blog’s page automatically. WHY???
in your blogger profile, you need to put your pic wtever you want to show then share with all.. Facebook will take that profile pic with description. Thanks, Kunjal Panchal
Images should be yours uploaded or linked via other websites correctly and not indirectly linked i.e. some websites require you to view it on your website and doesn't allow other linking or accessing it.
It does that sometimes.. I think you should sharing different page url or try different link. I'm also looking more into this! I will let you know if I come up with any solution.