I am experiencing the same problem on my website. When I publish the module I receive the following error message "Uncaught ReferenceError: s5_fd_images_loaded is not defined at HTMLImageElement.onload ((index):640)" although the index number changes for each error message. I am finding these errors using the Console tool under Google's Developer Tools. When I unpublish the module these errors go away. I have 6 images as part of my module and 6 error messages from Google's Developer Tools.
The module itself appears to be working fine on desktop and android devices apart from the error messages. I have tried doing a fresh install of the module, but it didn't make a difference.
I am including a screenshot of the Google Developer's Tools with and without the module published. You can view my site at https://www.custominternet.biz