PoE 2 Frostbolt and Fireball don't work with additional projectiles

Hey, so I wanted to make a build revolving around Frostbolt and Fireball with multiple projectiles, getting up close to an enemy's face and hitting them with all the additional projectiles. However, it turns out that the additional projectiles don't actually hit the target, only 1 projectile is allowed to hit the target and all the other ones just pass through it. I don't know if this is a bug or it's intended but it completely makes using scattershot support, wildshards support and Sire of Shards Chiming Staff on frostbolt/fireball useless.