[WORKAROUND FOUND] Shoot Fireball Going Wrong Direction

I'm trying to make a procedure that shoots fireballs in a downward direction. Long story short, everything works just fine, except the fireballs go up.

Note that I know for a fact that the problem is not with the inaccuracy value. Despite the fact that the target entity (player) is not referenced at all in this, the fireball will go in the direction the player is facing with a strong upward angle when the procedure is invoked.

Shoot [Fireball ax 0, ay -5, az 0, shooter: No entity] from x, y-2, z with direction dx 0, dy, -5, dz 0, inaccuracy 6