I’m testing with the following request with 34 user IDs:
https://api.twitch.tv/helix/streams/?user_id=12345&user_id=67890&user_id=54321&user_id= [...] &first=34
All 34 are IDs followed by me, out of which 5 are live at the time of testing. The request returns only two streams. What could be happening here?