I tried setting a node to type thumblist using the world outline menu
The thumbnail shows up, but when clicking through to the photo page I get a 404 not found
I believe this is because the menu item is setting type="thumblist" instead of "thumbList"
I changed the node with op.attributes.setone ("type", "thumbList") and the photopage displayed properly.
In my example, the case of the the word thumbList made a difference.
AC