Cannot find nether update items

 Nether update items are missing from creative menu and cannot be accessed cheats either.

Steps to Reproduce:

[Step 1] Enter creative world
[Step 2]Open menu
[Step 3]

Observed Results:

The nether updated items are no longer listed and no way to access them.

Expected Results:

The items should be there

Screenshots/Videos:

[Please attach an image or short video]

Notes:

I previously had access to all of the nether update items and just noticed them missing today.  Last played about a month ago. Pics show missing items not there.  Only thing that shows in my menu from the update is the soul speed enchantment.  Missing mobs as well.  I tried save and quit and going back in and they are still missing.