Making a part anchored doesn't stop it from falling?

I'm making a lightning ability sort of thing, and I'm working on the first move. It's supposed to make a ball of lightning appear on the user's hand, kind of like a Chidori if you've seen Naruto, and the user can press the key again to launch the lightning ball and cause an explosion, not so much like a Chidori. The explosion part hasn't been implemented yet, but whenever I try to tween the ball to wherever the mouse is, it just falls through the ground.

I assume this is because it's not anchored and CanCollide is turned off, but even when I make it anchored, it still does it. I'm trying to anchor it from the script that makes it appear, and I used prints to check if it was for some reason doing it locally, even being in a server script, and the prints printed what I wanted to happen, but the ball just falls.

Server:

-- Replicated Storage
local repStorage = game:GetService("ReplicatedStorage")
local powers = repStorage:WaitForChild("Powers")
local lightningEvents = powers:WaitForChild("Lightning")

local rEvent = lightningEvents:WaitForChild("R")
local tEvent = lightningEvents:WaitForChild("T")
local vEvent = lightningEvents:WaitForChild("V")

-- Events
rEvent.OnServerEvent:Connect(function(player,enabled,mouseCFrame)
	
	-- Player Stuff
	local char = player.Character
	local rightHand = char:WaitForChild("RightHand")
	
	-- Meshes
	local lightningBall = script:WaitForChild("Lightning Ball"):Clone()
	local boom1 = script:WaitForChild("Boom1"):Clone()
	local boom2 = script:WaitForChild("Boom2"):Clone()
	
	if enabled == false then
		
		-- Setting Positions
		lightningBall.CFrame = rightHand.CFrame + rightHand.CFrame.upVector*-5
		lightningBall.Parent = game.Workspace
		
		-- Welding
		weld = Instance.new("Weld",rightHand)
		weld.Part0 = rightHand
		weld.Part1 = lightningBall
		
	elseif enabled == true then
		
		local tweenService = game.TweenService
		
		local tweenInfo = TweenInfo.new(
			1,
			Enum.EasingStyle.Linear,
			Enum.EasingDirection.In,
			0,
			false
		)
		local partProperties = {
			CFrame = mouseCFrame
		}
		
		print(lightningBall.Anchored)
		weld:Destroy() -- Destroys the weld.
		lightningBall.Anchored = true -- Makes the ball anchored . . . supposedly.
		print(lightningBall.Anchored)
		
		local tween = tweenService:Create(lightningBall,tweenInfo,partProperties)
		tween:Play() -- Is there just something wrong with my tween?
		
	end
	
	
end)

-- Beyond this is just stuff for the other moves, they're still being made.

tEvent.OnServerEvent:Connect(function(player)
	
	
	
end)

vEvent.OnServerEvent:Connect(function(player)
	
	
	
end)

Client:

-- Player Stuff
local player = game.Players.LocalPlayer
local char = player.Character

local humanoid = char:WaitForChild("Humanoid")
local rootPart = char:WaitForChild("HumanoidRootPart")

-- Input
local UIS = game:GetService("UserInputService")
local mouse = player:GetMouse()

-- Replicated Storage
local repStorage = game:GetService("ReplicatedStorage")
local powers = repStorage:WaitForChild("Powers")
local lightningEvents = powers:WaitForChild("Lightning")

local rEvent = lightningEvents:WaitForChild("R")
local tEvent = lightningEvents:WaitForChild("T")
local vEvent = lightningEvents:WaitForChild("V")

-- Stats
local stats = player:WaitForChild("Stats")
local powerStat = stats:WaitForChild("Power")

local power = powerStat:WaitForChild("PowerLevel")

-- Debounces and Cooldowns
local db1 = false
local db2 = false
local db3 = false

local ballCooldown = 10

-- Other
local ballEnabled = false

UIS.InputBegan:Connect(function(input, gameStuff)
	
	if gameStuff then return end
	
	if input.KeyCode == Enum.KeyCode.R and db1 == false then
		
		if ballEnabled == true then
			
			db1 = true
			rEvent:FireServer(ballEnabled,mouse.Hit)
			wait(ballCooldown)
			ballEnabled = false
			
		elseif ballEnabled == false then
			
			rEvent:FireServer(ballEnabled,nil)
			ballEnabled = true
			
		end
		
		db1 = false
		-- Once again, the next two moves aren't made yet.
	elseif input.KeyCode == Enum.KeyCode.T and db2 == false and power.Value >= 50 then
		
		db2 = true
		
		tEvent:FireServer()
		
		db2 = false
		
	elseif input.KeyCode == Enum.KeyCode.V and db3 == false and power.Value >= 100 then
		
		db3 = true
		
		vEvent:FireServer()
		
		db3 = false
		
	end
	
end)

I might just be doing the tween wrong, but if you could help, I would greatly appreciate it!

Edit: Sorry, I forgot to post a Gyazo of what happens so you can get a better idea of what happens. https://gyazo.com/188a56c2ec2402093795d1e697a04692