Arrow Shotgun spread works incorrectly

[TenToTu Sho]

So I've seen a post asking for a Shotgun spread with a bow, but I can't seem to make it work properly.

on shoot:
    shooter is a player
    set {_arrowSpeed} to {arrowSpeed::%shooter%} * 2
    set {_entity} to "%shooter%" parsed as entity type
    {trishot.dontshoot::%shooter%} is not true
    "%shooter%" = "tentotu"
    set {trishot.dontshoot::%shooter%} to true
    make shooter shoot arrow at velocity {_arrowSpeed}
    push last shot projectile left at speed 0.3
    make shooter shoot arrow at velocity {_arrowSpeed}
    push last shot projectile right at speed 0.3
    wait 1 tick
    clear {trishot.dontshoot::%shooter%}

It works just fine when shooting straight (north, west, east or south), but when i try to shoot diagonally (northwest, southeast, etc.) all of the arrow just go in weird locations, like this

[doublepost=1608995850,1608995817][/doublepost]the image: https://imgur.com/a/pPcLNOi
[doublepost=1608995915][/doublepost]how it works when shooting straight: https://imgur.com/a/zbC3p2z

 

[Brosqa]

noone knows