Why does this always output 0, 0, 0? I've already described it, why do I need more?

I'm making a convertor for positions for ripping a 3d model from another game. The positions work fine, but the orientation always prints 0, 0, 0. Why is that?

The code is based off of this: link (go to line 77)

local XNode = Vector3.new(-0.850637, -1.70512, 1.27218)
local YNode = Vector3.new(0.600007, -2.03402, 1.28813)
local RefNode = Vector3.new(-0.850637, -2.03402, 1.27218)
local OffsetX = 0.5
local OffsetY = 0
local OffzetZ = 0

local diffX = XNode-RefNode
local diffY = YNode-RefNode

local normal = diffY:Cross(diffX).Unit
local position = RefNode + OffsetX * diffX + OffsetY * diffY
position = position + OffzetZ * normal
print("Position of the flexbody/prop is " .. tostring(position))

local rot = Vector3.new(0.5,0,0)

local refX = diffX.Unit
local refY = refX:Cross(normal)
local orientation = Vector3.new(refX, normal, refY) * rot

print("Orientation of the flexbody/prop is " .. tostring(orientation))