Hey there! I looked up the song you mentioned, and found it on bandcamp:
https://plsuk.bandcamp.com/track/stain-of-blood-shadow
I recognized some overlap with this sound from Freesound I'm using. You can see the full list in the game credits.
https://freesound.org/people/Headphaze/sounds/177101/
I initially thought that perhaps someone uploaded a copyrighted sound to Freesound, but this sound was posted in 2013, and the earliest mention of this artist or album is found in 2019.
So, I think this artist may have sampled this sound in their song, and now that song is copyrighted and flagging YouTube videos :/
It's weird because this sound effect is CC-A, so if the sound effect did come first, then this artist used the sample without credit.
I'll look into this a bit more, but I might have to remove this sound from the game either way.