If you provide a link to the site that you are trying to use the plugin on, I'll have a closer look at what is going on.. The site might use some HLS feature that the plugin doesn't support yet or it might not be using HLS at all. Streamed videos are not all the same and different tools my be needed to deal with different protocols. But that's exactly the point of the free trial version - to let you test if it works on the specific site that you are interested in. Good luck finding a tool that is tailored to whatever that site is using.