Hi Mike,
Thanks for the reply, I have managed to make it work now by converting some of my pages to posts and setting categories through the shortcode, I found that only worked if I referred to the category by number rather than name. Not a problem once I worked it out though!!
I set up a test page if you want to have a look with shortcode [wp-tiles posts_query=’post_type=page’]
https://www.lsufoundation.co.uk/test/
The working pages using posts are these two,
https://www.lsufoundation.co.uk/projects-and-costings/
https://www.lsufoundation.co.uk/volunteer-testimonials-grid/
Hope they will give you some insight.
Thanks for the plugin by the way.
Ben