Pigstep won't play and Zombie Piglins don't show

When I went to go look at all the new things in the Nether Update, I wanted to see what Zombie Piglins looked like. I went to go spawn this new mob but all that showed up was a normal Pigmen. Then after that had happened I wanted to hear what the new disc sounded like, buy when I put it in the jukebox, all I got was silence.