Flint and steel and fire charges do not make a sound when igniting TNT

Can confirm for 1.16.4 and 20w49a, this also affects fire charges.

Can confirm in 21w03a.

Can confirm in 21w05b.

Can confirm in 21w06a.

Can confirm 1.16.5 and 21w07a.

Can confirm in 1.18.1.

It's important to note that this same concept can also be seen with fire charges as well. In other words, when a fire change is used to ignite TNT, the minecraft:item.firecharge.use sound isn't played.

Here's a code analysis along with a potential fix regarding this issue.

Code Analysis:

The following is based on a decompiled version of Minecraft 1.18.1 using MCP-Reborn.

net.minecraft.world.level.block.TntBlock.java

public class TntBlock extends Block {
   ...
   public InteractionResult use(BlockState $bs, Level $l, BlockPos $bp, Player $p, InteractionHand $ih, BlockHitResult $bhr) {
      ItemStack itemstack = $p.getItemInHand($ih);
      if (!itemstack.is(Items.FLINT_AND_STEEL) && !itemstack.is(Items.FIRE_CHARGE)) {
         return super.use($bs, $l, $bp, $p, $ih, $bhr);
      } else {
         explode($l, $bp, $p);
         $l.setBlock($bp, Blocks.AIR.defaultBlockState(), 11);
         Item item = itemstack.getItem();
         if (!$p.isCreative()) {
            if (itemstack.is(Items.FLINT_AND_STEEL)) {
               itemstack.hurtAndBreak(1, $p, (p_57425_) -> {
                  p_57425_.broadcastBreakEvent($ih);
               });
            } else {
               itemstack.shrink(1);
            }
         }

         $p.awardStat(Stats.ITEM_USED.get(item));
         return InteractionResult.sidedSuccess($l.isClientSide);
      }
   }
   ...

If we look at the above class, we can see that the minecraft:item.flintandsteel.use and minecraft:item.firecharge.use sounds aren't played when igniting TNT through using some flint and steel or a fire charge.

Potential Fix:

Simply adding some lines of code that play the appropriate sound when using some flint and steel or a fire charge to ignite TNT, should resolve this problem. The following line of codes could be used in order to fix this:

$l.playSound((Player)null, $bp, SoundEvents.FLINTANDSTEEL_USE, SoundSource.BLOCKS, 1.0F, 1.0F);

$l.playSound((Player)null, $bp, SoundEvents.FIRECHARGE_USE, SoundSource.BLOCKS, 1.0F, 1.0F);

The correct pieces of code within its class should look something like the following:

net.minecraft.world.level.block.TntBlock.java

public class TntBlock extends Block {
   ...
   public InteractionResult use(BlockState $bs, Level $l, BlockPos $bp, Player $p, InteractionHand $ih, BlockHitResult $bhr) {
      ItemStack itemstack = $p.getItemInHand($ih);
      if (!itemstack.is(Items.FLINT_AND_STEEL) && !itemstack.is(Items.FIRE_CHARGE)) {
         return super.use($bs, $l, $bp, $p, $ih, $bhr);
      } else {
         explode($l, $bp, $p);
         $l.setBlock($bp, Blocks.AIR.defaultBlockState(), 11);
         Item item = itemstack.getItem();
         if (!$p.isCreative()) {
            if (itemstack.is(Items.FLINT_AND_STEEL)) {
               $l.playSound((Player)null, $bp, SoundEvents.FLINTANDSTEEL_USE, SoundSource.BLOCKS, 1.0F, 1.0F);
               itemstack.hurtAndBreak(1, $p, (p_57425_) -> {
                  p_57425_.broadcastBreakEvent($ih);
               });
            } else {
               $l.playSound((Player)null, $bp, SoundEvents.FIRECHARGE_USE, SoundSource.BLOCKS, 1.0F, 1.0F);
               itemstack.shrink(1);
            }
         }

         $p.awardStat(Stats.ITEM_USED.get(item));
         return InteractionResult.sidedSuccess($l.isClientSide);
      }
   }
   ...

Can confirm in 1.18.2 and 22w14a.

Can confirm in 1.19.

Can confirm in 1.19.2.