After updating to the 1.16 nether update on June 23 2020 I still have zombie pigmen spawning in my nether instead of zombified Piglins. While in the creative menu the Zombie pigmen spawn egg is no longer there but instead the zombified Piglin spawn egg is available however it will not spawn anything when I use the item on the ground no matter what biome or dimension I might be in. In the screenshot attached you can see a piglin standing next to the old style zombie pigmen (Which spawned in the nether) instead of a Zombified piglin