(You have an Indian-sounding handle, so you might identify with this problem!)

I'd uploaded all of my offline library to Google Play Music, back when it was relatively easier to do so, and before it became YouTube Music.

Unfortunately the service seemed to do some sort of acoustic fingerprinting to make uploads more efficient, and I ended up with the wrong language versions of several of my film soundtrack songs! Loads of them got randomly converted from Tamil -> Telugu, Tamil -> Hindi, Hindi -> Telugu, Hindi -> Tamil, etc.