Easyblog Update causes a second demo image on entry

The new Easyblog update has caused an issue with our posts. On entry if the post has an image placed in the editor it also shows a blank "demo" image in the area where you would have the cover image. Some of our posts use the cover image feature which is fine but others don't and this is the issue. The latest update 5.1.7 doesn't fix it. There is a setting called "First Image as Post Cover" but it doesn't change anything.
I attached a screenshot.
Thanks