It's likely that it's been (falsely) targeted as a copyright infringement on the game audio. Same thing happens with all my LoZ VODs. Just a stupid remix/cover by said artist that they then use to ding the actual game music and videos that have it.

There's not much you can do about it. I've tried appealing these things on twitch, I've never had anything resolved (versus on YouTube where they get resolved in decent time). Only thing you can do, if you want to use the video without any muted audio, is to also record your runs to your computer and upload them to YouTube.

Its because of DJCoverthis. Its so dumb. I usually keep my game volume on obs a bit lower so it doesn't get muted when i run z1. Hope that helps you!

There is a solution to this that can work retroactively.

Go to your video manager: https://www.twitch.tv/Aerytheta/manager Your videos will be listed. On the right side of every video's box are 3 dots. Click that to bring down a menu. If the video has muted audio, there will be an option called "Appeal Muted Audio" -- click that. A new page will show all the audio which has supposed copyright. The typical bad claims to your audio come from DJCoverThis and Arcadia. Both are bogus. On the right a drop down box says "Appeal Reason", select "My video does not contain the audio identified" for all the bogus claims. After that, click below where it says "Appeal Selected" Fill out the form provided. Mutes are typically removed in about a week. 100% of the disputes I have made against the above bogus claimants have gone my way.