Truth is there are groups of people claiming ownership of copyrighted material that doesn't belong to them (its a racquet) so they put a copyright claim against any song that is played on youtube that falls under "Fair Use" laws. I disputed the claim to youtube but they only help the fraudulent parties. A long standing problem youtube has been faced with they don't have an answer for. In short, they steal views for monetization money, sadly. :(
The culprits are all over the world using the youtube platform and your videos as hostage. They have removed peoples channels because of the disputes. A good example is a youtuber named PewDiePie, all the content he has posted for everyone was hijacked by these people and its his own original content. RU-vid didn't back him and he is almost as big as Mr. Beast.