Why isn't the 'FindPartOnRayWithIgnoreList' method working?

This fires a ray from a brick and creates the parts called 'bOOm' when the ray hits an object.. the parts are created however when they are, the ray is obstructed by the bOOm parts. I was told to use the 'FindPartOnRayWithIgnoreList' so I tried but it's not working.

I'm probably using it incorrectly so please help.

This is what it looks like: Raycast

while wait() do

    local bOOm = Instance.new("Part")
    bOOm.BrickColor = BrickColor.new("Bright red")
    bOOm.FormFactor = "Custom"
    bOOm.Material = "Neon"
    bOOm.Transparency = 0.25
    bOOm.Anchored = false
    bOOm.CanCollide = false
    bOOm.Name = "bOOm"
    local ray = Ray.new(script.Parent.CFrame.p,  script.Parent.CFrame.lookVector * 300)

    local part, endPoint = workspace:FindPartOnRayWithIgnoreList(ray, {script.Parent, bOOm}) -- Problem is here

        bOOm.Parent = workspace

        local beam = Instance.new("Part", workspace)
        beam.BrickColor = BrickColor.new("Bright red")
        beam.FormFactor = "Custom"
        beam.Material = "Neon"
        beam.Transparency = 0.25
        beam.Anchored = true
        beam.CanCollide = false

        local distance = (script.Parent.CFrame.p - endPoint).magnitude
        beam.Size = Vector3.new(0.3, 0.3, distance)
        beam.CFrame = CFrame.new(script.Parent.CFrame.p, endPoint) * CFrame.new(0, 0, -distance / 2)

        bOOm.Size = Vector3.new(1, 1, 1)
        bOOm.CFrame = CFrame.new(endPoint)

        print(part)
        game:GetService("Debris"):AddItem(beam, 0.1)
        game:GetService("Debris"):AddItem(bOOm, 0.4)
end