Pop Up Pro adding additional slashes to content

When adding in a link with an image to the WYSIWYG of the Pop Up Pro, we are getting misc. backslashes within the html. Additionally, it's adding "data-pin-nopin="true" to the html as well.

Just updated to latest version of plugin as well.
Any ideas why?

Example: <img src=""http://freeskier.com/wp-content/uploads/2015/11/shootout-text.png"" target=""_blank"/" data-pin-nopin="true">