Sometimes, when you throw a projectile with a sculk sensor near, the skulk sound particle will come from the player rather than from where the projectile hits. I'm not certain what causes this bug, but it will sometimes come from where the projectile hits and sometimes from the player. This bug does not seem to be caused by hitting a certain spot of the block or if you are moving while throwing. Snowballs are the best projectile for showing the difference from the sound particle coming from the player and coming from the projectile hit point.

EDIT: This seems to come from throwing/shooting a projectile triggers a sculk sensor, likely works as intended.