Some Nether Brick variants don't have the new sounds

After hearing the clip with loud pitch I can assume the normal nether bricks is the only nether bricks to have the new sound, all other nether brick blocks have the sound of normal stone or something else.

@Jesse Kohn only normal/red nether brick slabs/walls and chiseled/crack nether bricks don't have the sounds. The rest HAVE the sounds

Must have heard the clip incorrectly, either way this needs fixed.

Affects 1.16.100

Also in 1.16.200.53 beta

Well In Lastest Preview The stone_block_slab has been splited, it includes nether brick slab, I think it's easier to fix.

and 1.21.30.21

This issue is caused by the definitions for the affected blocks in blocks.json specifically using the "stone" sound set. It can be fixed by putting the following in a blocks.json in a resource pack.

{
   "chiseled_nether_bricks" : {
      "sound" : "nether_brick",
      "textures" : "chiseled_nether_bricks"
   },
   "cracked_nether_bricks" : {
      "sound" : "nether_brick",
      "textures" : "cracked_nether_bricks"
   },
   "nether_brick_double_slab" : {
      "sound" : "nether_brick",
      "textures" : "nether_brick_slab"
   },
   "nether_brick_slab" : {
      "sound" : "nether_brick",
      "textures" : "nether_brick_slab"
   },
   "nether_brick_wall" : {
      "sound" : "nether_brick",
      "textures" : "nether_brick_wall"
   },
   "red_nether_brick_double_slab" : {
      "sound" : "nether_brick",
      "textures" : "red_nether_brick_slab"
   },
   "red_nether_brick_slab" : {
      "sound" : "nether_brick",
      "textures" : "red_nether_brick_slab"
   },
   "red_nether_brick_wall" : {
      "sound" : "nether_brick",
      "textures" : "red_nether_brick_wall"
   }
}

Replying to GoldenHelmet:

For a comprehenisve list of blocks assigned incorrect sounds in blocks.json, see MCPE-184908. It exposed many bugs similar to this Nether Brick one.

Still not fixed for nether brick double slabs in 1.21.60.23 preview