The bug
When walking on a walkway of some thin blocks with a block beneath it, it sound like I'm walking on the block below. It's like the sound engine ignores the thin block.
Blocks affected:
Carpets(fixed in 22w44a)Rails
Pressure plates (besides clicking, it still plays the walking sound from the block below)
Redstone Repeater
Redstone Comparator
Trapdoor
Lilypad(fixed in 22w44a)Small Amethyst Bud(fixed in 22w44a)Glow Lichen(fixed in 22w44a)
How to fix
Most of these blocks could be added to the #minecraft:inside_step_sound_blocks tag.
Confirmed, same with repeaters.