About the plugin – I don’t know it. And, unfortunately, we can’t help debug third party plugins. Maybe the plugin owner can tell you more, maybe he has a setting or something that can help you.
About images in post, I don’t know if we can help more, without us doing the coding. Will try to think of another solution, but I can’t make any promises. It’s a difficult edit to make. Will write as soon as we have more news.