I don't know the full extent, but apparently, music composer Alex Mauer (a female composer, to clarify) got angry when she got her music removed from the game. In a move of pure spite, she started a DMCA strike that would make Daddy Derek Savage of "Cool Cat Saves the Kids" blush. She started targeting anybody that had her music, the game that featured the music, even featured the game. She targeted several dozen YouTubers. It gets worse. The original game designer has decided to sue Alex (with YouTube's favorite copyright lawyer, Leonard French, as the developer's legal team). Wait, it gets worse. She even threatened YouTuber SidAlpha with a death threat. I will not show you the video, but I have seen the evidence for myself.
It's scary what happens online. I hope I never become like this Alex Mauer. I will stay away from her twitter account. Let's all think and pray that cooler heads prevail in this tense situation.