Just bought the Redmi 9T 64 (M2010J19SG) The main whatsapp has no issues - but the secondary install Whatsapp Business does not play notifications sound (just the icon indicator). Third whatsapp, installed inside the Parallels Pro has the same problem - plus it show no reaction to whatsapp call if the phone is locked. Business show it. I gave all of them all the possible permissions. And i feel there is something i missed.