The New Twitch API needs serious attention. I worked considerable with the V3 API and that was rock solid. I'm having a difficult time with the new API. It has a lot of quirks.

My biggest issue now is that certain calls return an empty response with certain parameters.

For example, if I try to filter streams with a gameid and language this will return a result with 0 items sometimes while other times it will return the correct results. The behavior is very inconsistent.
https://api.twitch.tv/helix/streams?gameid=33214&language=en

It works 100% of the time without the language parameter.
https://api.twitch.tv/helix/streams?game_id=33214

It will also filter incorrectly if the parameters are not entered in alphabetical order which is not documented.