Content Glider 6.x-1.4 displays only two nodes

I created a content type "testimonial" and created three nodes of that type

Content Glider only displays the first two. nodes of that content type.

If I set the number above 2 (eg 3) the same 2 nodes are rotated

I tried reinstalling, updating the database, cloning one of the working nodes, unpublishing and publishing various nodes, and rolling back to 6.x-1.3

Even if I set the content type a standard type like "page" it only repeats two of the existing nodes

In the control at the bottom it only shows two members.