resourcepack custom sound has infinite attenuation range

I was trying to make custom music resource pack with sound.json file, but I found something wrong. when I start playing my custom sound, No matter how far away I can hear the sound. First I thougth it was my mistake, and add attenuation_range property, but it doesnt't work. And I tried other one's sound pack and found Most of 1.21.4 sound pack has same problem. sound.json's attenuation_range doesn't work at all. Please fix it as soon as possible.