December 09, 2011
I had this problem while developing a custom WordPress widget for my client, it displays random testimonials with thumbnail,video and star ratings.
Below is a part of my code on the custom widget
query_posts('post_type=testimonials&orderby=rand');
And it only displays the latest testimonial, but compared to my previous developed websites, with same php code it randomly displays posts.
I found a solution from this site
remove_all_filters('posts_orderby');
query_posts('orderby=rand');
The code above is removing all the filters before running the query.
What causes the problem are two plugins based from my experience WP Sticky and Post Types Order
