Attachments with Facebook Publish

I use a Facebook Plugin that publishes a link of a post to my facebook page. I offer a og:image tag in my header for facebook to define the preview image in the facebookpost, this og:image is set by the first attachment thats found for a post. The problem is that wenn I create a new post add the title, text and some attachments, the time I press the publish button in wordpress facebook begins to search for the og:image tag but the attachments are not ready. I think the attachments plugin is called after the facebook plugin has done its work so their is no attachment for the og:image tag as facebook is searching for it.
When I first publish the post without activating the “post to facebook” option it saves the attachments and then when I publish the same post a second time its working because the attachments have already been saved previously. Is there any way of getting away with this timing issue?

https://ww.wp.xz.cn/plugins/attachments/