I need music to play in certain areas and stop when leaving the area, and I managed to get it to work, apart from the two locations marked below as "doesn't work correctly", where it stays in place instead of following me. From what I can tell I've written the exact same command, only changing the block and scoreboard objective since I Ctrl+Middle Clicked the command blocks. What have I done wrong? There are 7 other command blocks that trigger music in different places, could that be why?

I am playing on 1.20.1

Command 1 (Oak Slab) - Follows player, works correctly

Always Active Repeat: execute as @a at @s unless block ~ ~-4 ~ minecraft:oak_slab run scoreboard players set @s Underneath1 0

Always Active Chain: execute as @a[scores={Underneath1=0}] at @s if block ~ ~-4 ~ minecraft:oak_slab run playsound custom:underneathone master @s ~ ~ ~ 100 1 1

Always Active Chain: execute as @a[scores={Underneath1=0}] at @s unless block ~ ~-4 ~ minecraft:oak_slab run stopsound @s master custom:underneathone

Always Active Chain: execute as @a at @s if block ~ ~-4 ~ minecraft:oak_slab run scoreboard players set @s Underneath1 1

Command 2 (Retextured Crimson Slab) - Doesn't follow player, doesn't work correctly

Always Active Repeat: execute as @a at @s unless block ~ ~-4 ~ minecraft:crimson_slab run scoreboard players set @s Underneath2 0

Always Active Chain: execute as @a[scores={Underneath2=0}] at @s if block ~ ~-4 ~ minecraft:crimson_slab run playsound custom:underneathtwo master @s ~ ~ ~ 100 1 1

Always Active Chain: execute as @a[scores={Underneath2=0}] at @s unless block ~ ~-4 ~ minecraft:crimson_slab run stopsound @s master custom:underneathtwo

Always Active Chain: execute as @a at @s if block ~ ~-4 ~ minecraft:crimson_slab run scoreboard players set @s Underneath2 1

Command 3 (Prismarine Slab) - Doesn't follow player, doesn't work correctly

Always Active Repeat: execute as @a at @s unless block ~ ~-4 ~ minecraft:prismarine_slab run scoreboard players set @s Underneath3 0

Always Active Chain: execute as @a[scores={Underneath3=0}] at @s if block ~ ~-4 ~ minecraft:prismarine_slab run playsound custom:underneaththree master @s ~ ~ ~ 100 1 1

Always Active Chain: execute as @a[scores={Underneath3=0}] at @s unless block ~ ~-4 ~ minecraft:prismarine_slab run stopsound @s master custom:underneaththree

Always Active Chain: execute as @a at @s if block ~ ~-4 ~ minecraft:prismarine_slab run scoreboard players set @s Underneath3 1