Multi Reference on home page

I can’t seem to add multi reference items to my home page dynamic lists.

I have cloned the travel blog from the tutorial series and they seem to be able to do it

I am just mainly testing how to structure my backend content.
I am an arch viz artist and have projects with multiple images and video. Each image also has a thumbnail, image type and caption associated with it.

So in my project section I have all project images from the Images collection.

On the home page I would like to list all the projects and use a thumbnail from the image collection.

Here are my intended collections:

Images
Videos
Projects

Please any help would be helpful


Here is my public share link: LINK
(how to access public share link)