Hi, I am really sorry but it isn't working!
I can see that the one you did on the video is featuring well (BTW I am not uploading the images via FTP but from the WP site upload, I just showed that to show the images are there).
I have just done 'Titteration' and as you will see it is not displaying properly with a feature image and scroll, they are all just down the side.
Also I did 'Elephants' which is working but it is missing one image of an elephant despite being on the saved portfolio item backend.
Can you look into this further? It really looks buggy. I am not getting what I need despite exactly the same settings on the page. Could it be to do with any of the category or tags?
Also the breadcrumb 'portfolio' is not a apparent at the top?