Lyrics may not be displayed on the Music of iOS14
I think it's been since iOS14, sometimes but even if I press the lyrics icon (".." in the balloon) on the Music to switch to the lyrics display, the lyrics registered in the lyrics may not be displayed and may be blank only.
It may or may not happen. After checking various times, it seems that lyrics are displayed when Wifi connection, but not when 4G. But I don't know the relationship.
In addition, the lyrics are always displayed on the screen transitioned from "View Full Lyrics" (in the menu of the "..." in a circle icon.
iPhone XR