Quick answer
If a Twitch link does not work, paste the exact public clip URL again and avoid channel or live pages.
Public Twitch clips are the easiest cases. Channel pages, live streams and some VOD URLs do not behave like a direct clip link.
What breaks most often on Twitch
A channel, live or VOD URL does not behave the same way as a true public clip.
- Copy the exact clip URL.
- Check that the clip is public.
- Removed content will not be supported.
How to confirm that it is really a clip
The page should display a standalone clip with its own URL. If you are still inside the channel or the live page, the URL is not the right one.
- Avoid channel URLs.
- Copy the link again from the clip share action.