Sometimes this can just happen regardless. The stream went offline as the page was preparing. Or Twitch jsut didn’t get a full page and returned it with a “heres the next page” cursor
I see this a lot with this exmaple Browser Categories | Twitch API Example where you find a lot of “incomplete” pages. Theres a variety of reasons why this could be
There might also be a weird bug floating around with the API, I flagged it here https://twitter.com/BarryCarlyon/status/1595798841936289793 but due to a holiday weekend we are waiting for Twitch to get back into the office.