Issue with images on social media

Hello, I love this theme! I’ve used it for a while now with several websites. I’ve recently begun to have a problem though which is quite frustrating. When we try and publicize posts on our social media network, it is pulling the wrong photo from the post. I assumed it was an update issue, so I’ve updated everything but it still keeps happening. Is anyone else experiencing this?

Second, I’m trying to get a hold of the developer of pinboard to talk about building a custom theme for me… would be great to hear back.