Table header doesn't repeat on new page after applying hot fix

Good day,

I am working on a report that uses a Tablix. I want the headers of the Tablix to report on every new page. I clicked in the Tablix Properties to repeat header rows on each page and keep header visible while scrolling. But headers do not repeat. I also went on the internet and downloaded the latest HotFix that was recommended to fix this problem but the headers still do not repeat. Is there something that I am missing.