can’t make new slide show work

i have several slide shows on my site. i’m trying to make a new one and cannot get it to work. i’ve checked as many things as i can think of, comparing the new portfolio to the old ones. i have watched Devin’s video five or six times. There are discrepancies between the video and my reality

any help would be appreciated

The page I need help with: [log in to see the link]