The links to the resources are not working, they just loop back to reopening the current video. This is happening on multiple videos, across a couple of courses I’ve seen. I am accessing this from the gamedev.tv website (not udemy).
We are aware of the issue, and are working with our provider to get this fixed. In the meantime, at the bottom of the lecture list is a section “All Downloads”. You should be able to download the files there (I just tested).