hitRootPart not unanchoring upon hit?

Help and Feedback Scripting Support
#1

I’m trying to make a knockback hammer that anchors (freezes) you for a certain amount of time when you swing it. But when other players hit you with the hammer, you should get unanchored, assuming you’re anchored. But the issue of my script is, it does nothing.

Client: (I don’t think the problem is in the client tho but here it is…)

local tool = script.Parent

local player = game.Players.LocalPlayer
local character = player.Character or player.CharacterAdded:Wait()
local humanoid = character:WaitForChild("Humanoid")
local rootPart = character:WaitForChild("HumanoidRootPart")

local remoteEvent = tool.RemoteEvent

local animator = humanoid:WaitForChild("Animator")

local charge = script.Charge
local smash = script.Smash

local chargeTrack = animator:LoadAnimation(charge)
local smashTrack = animator:LoadAnimation(smash)

local cooldown = false
local charged = false
local hanging = false
local charging = false

local magnitude = 100

tool.Activated:Connect(function()
	if not cooldown and not hanging then
		cooldown = true
		
		if not charged and not charging then
			charging = true
			
			smashTrack:Stop()
			chargeTrack:Play()
			
			delay(chargeTrack.Length - 0.02999, function()
				chargeTrack:AdjustSpeed(0)
			end)
			
			charged = true
			
			for i = 50, 100 do
				if charging then
					wait()
					magnitude = i
				end
			end
		end
		wait(1)
		cooldown = false
	end
end)

tool.Deactivated:Connect(function()
	chargeTrack:Stop()
	
	if charged then
		charging = false
		
		smashTrack:Play()
		
		remoteEvent:FireServer(character, charged, magnitude)
		
		delay(smashTrack.Length - 0.02999, function()
			smashTrack:AdjustSpeed(0)
			
			rootPart.Anchored = true
			hanging = true
			
			wait(1)
			smashTrack:Stop()
			
			rootPart.Anchored = false
			hanging = false
		end)
	end
	
	charged = false
end)

tool.Unequipped:Connect(function()
	chargeTrack:Stop()
	smashTrack:Stop()
	
	cooldown = false
	charged = false
	hanging = false
	charging = false
end)

Server:

local tool = script.Parent
local head = tool.Handle

local remoteEvent = tool.RemoteEvent

local smash

remoteEvent.OnServerEvent:Connect(function(player, character, charged, magnitude)
	local rootPart = character:FindFirstChild("HumanoidRootPart")
	
	if charged then
		smash = head.Touched:Connect(function(hit)
			local humanoid = hit.Parent:FindFirstChild("Humanoid")
			local hitCharacter = hit.Parent
			local hitRootPart = hitCharacter:FindFirstChild("HumanoidRootPart")
			
			if humanoid then
				local knockback = Instance.new("BodyVelocity")
				
				hitRootPart.Anchored = false --here fella!
				
				knockback.Parent = hitRootPart
				knockback.Velocity = (rootPart.CFrame.LookVector * magnitude) + (rootPart.CFrame.UpVector * magnitude)
				knockback.MaxForce = knockback.MaxForce * magnitude
				wait()
				knockback:Destroy()
			end
		end)
		
		wait(0.3)
		smash:Disconnect()
	end
end)