"no-show" bug: Slideshow not displaying images

My slideshow has the "no-show" bug: https://www.instructables.com/id/The-Billboard-that-Ruined-Christmas/ 

FYI: it seems to be the result of saving the slideshow and the slideshow not displaying the latest saved version of the pictures. For example in the slideshow mentioned above, I saved it before uploading any pictures. In past slideshows, I've made a slideshow, uploaded images, saved it and uploaded more pictures, re-saved it, and had the slideshow not display any pictures beyond those uploaded before the original saving.
 

mrcrumley (author) 8 years ago
It works now. It's a Christmas Miracle!
noahw mrcrumley8 years ago
Fantastic!

Santa has finally answered my letters!

Let me know if you have anymore problems,
Noah