I have a problem I am wondering if you could give me an idea for a fix. I am not sure if there is a conflict somewhere with the theme and maybe a plugin but whenever someone comments using the Facebook comments plugin I have installed, it shows on their wall but their is no thumbnail image. I used the Facebook debugger tool and got this below:
Response Code 200
Fetched URL remove
Canonical URL remove
Errors That Must Be Fixed
More Than One OG URL Specified Object at URL remove
I dont really understand it but is there a way I can get Facebook to start grabbing an image from the post for comments. I just noticed this issue.