Hello, Thank you for your contacting us about an issue with random ordering a section of your site. We spent some time testing this, and the "ORDER BY RAND()" function is working in your Database. I ran the following query to test:
SELECT * FROM &ltposts_table&gt ORDER BY RAND()
I recommend checking any caching plugins you may have, as caching plugins save an existing state, and just loads what was saved previously. If you have any further questions, feel free to post them below. Thank you, John-Paul