Hello and good day.
I am having the same issue I have seen a few times, the thumbnails do not show up on the gallery page and they show up as question marks on the settings page.
I tried the [raw] short codes and that did not work and I also removed wpautop in my functions and still no luck. I also can not find my theme using the Jquery Flexslider to update it.
Here is my page: http://motion-master-templates.com/draft the password is MMT123
I am really looking forward in using this plugin as it looks amazing! :)
Thank you for all your hard work and I will be looking forward to your response.