The following script is a global script that fires when I say something specific in a local script in that case for testing purposes I chose "IDK", and when I click after saying "IDK" with the activated event on the tool it will fire the remote event, for some reason the ray cast is casting sometimes at the direction of the mouse but not always. Sometimes it just casts randomly to the sky or to the sides of the tool, any suggestions why? The problem is at line 29

	script.RemoteEvent.OnServerEvent:connect(function(Player,Mousehitp,Mousehit)
	repeat wait() until Player.Character
	Character = Player.Character
	tool = script.Parent.Parent
	local laser = Instance.new("Part")
	laser.Name = "Laser"
	laser.FormFactor = Enum.FormFactor.Custom
	laser.TopSurface, laser.BottomSurface = 0, 0
	laser.Size = Vector3.new(0.2, 0.2, 10)
	laser.BrickColor = BrickColor.Blue()
	laser.Material = "Neon"
	laser.Anchored = true
	laser.CanCollide = false
	laser.Locked = true
	laser.CFrame = tool.Tip.CFrame
	laser.Parent = game.Workspace
	
	local maxDistance = 400
	local curDistance = 0
	
	local stepDistance = 2.5
	local stepWait = 0
	
	local StartPoint = tool.Tip.Position
	
	local function Step(overrideDistance)
		
		-- Cast ray:
		local ray = Ray.new(StartPoint, Mousehit.p.Unit * (overrideDistance or stepDistance))
		local hit, pos, norm = game.Workspace:FindPartOnRayWithIgnoreList(ray, {tool.Tip,Character})
		local ignore = {Character,tool.Tip}
local hit, position, normal = game.Workspace:FindPartOnRay(ray, ignore)

		-- Update laser position:
		laser.CFrame = CFrame.new(StartPoint:lerp(pos, 0.5), pos)
		
		local oldPos = StartPoint
		StartPoint = pos
		
		if (hit) then
		end
		
		curDistance = (curDistance + (pos - oldPos).magnitude)
		
		-- Apply fade effect to laser as it approaches max distance from < 75 studs:
		if (curDistance > (maxDistance - 75)) then
			local d = (curDistance - (maxDistance - 75)) / 75
			laser.Transparency = d
		end
		
		-- Recurse if max distance not reached:
		if (curDistance < maxDistance) then
			wait(stepWait)
			Step()
		end
	end
	
	Step()
	
	-- Done! Destroy laser:
	laser:Destroy()
	
end)
AnonymousEdited