Facebook recently disapproved a post that we were trying to promote and after contacting them they had re-reviewed and approved the post for promotion. Before it was disapproved we were able to select from 1 of 6 available images to use as a thumbnail for the post. Now after having been re-approved, the post only ever displays 1 image that we can choose which is not the one we want to use. We have even recreated the content of the post on to another URL and in the Facebook Debugger are able to see all 6 images, but when we paste it to the wall we can only see the 1 image that we cannot use.
For the purpose of the question the URL was: example.com/slug-of-the-article/
What we have tried:
Re-running the example.com/slug-of-the-article/ through the Facebook Debugger
Adding a "-fb" to the end of the URL to trigger a new page to submit. ex. example.com/slug-of-the-article-fb/
How are we able to get Facebook to allow use of any of the 6 images again?
Another note: Logging into a different account and posting the link allows for the use of all images as thumbnails, the problem only seems to be present on our page or on our account.