Incase this helps anyone, I was able to fix my issue. Go to your store theme then edit code. Under assets > Theme.css.liquid  there is an img setting called opacity that was set to "0". For the Fetch website theme, this was on line 1948. I changed it...

We are also having the same issue. I'm not sure if it is related, but we recent switched our website theme to "Fetch" from "Debut". Either way, the feature image displays fine, but pictures embedded in the post will not show. I can right click where ...