Layouts plugin provides a drag-and-drop editor that is used from the WordPress administration. Using this editor, you can create layouts, assign them to specific content and design entire pages.
When you ask for help or report issues, make sure to tell us the design that you want to achieve and the layouts that you have created so far.
I created some Layouts assigned to some CPT just wondering and learning how Toolset works. Now, I don't need those Layouts and I want to delete them to clean my back end. When I try to delete them, I can't. Layout says that there are contents assigned, but it is not.
Solution:
To fix it, you can try to re-create the custom post type, and delete the layout, then delete post type again.
