Unit placement script sometimes causes error (tower unit)

Help and Feedback Scripting Support
#1

So in my tower defense game i have a tower that summons a unit in a specified position, and it works well most of time, BUT NOT THE WHOLE TIME. As i was playing, i click the towers ability to summon and it does summon, but the when it summons, the script sometimes stop without even a error, i tried the :WaitForChild() Methods and they make the tower work but they do not assist the help of it, how do i fix so they don’t stop when spawning a unit?

	local char = script.Parent.Parent.TowerValue.Value
	local creator_player = char.creator
	local Players = game.Players
	local creator = Players:FindFirstChild(creator_player.Value)
	local humanoid = char.Humanoid

local w = humanoid:LoadAnimation(char.build)
script.Parent.MouseButton1Click:Connect(function()
	if creator.leaderstats.Coins.Value >= 0 and char.SentriesAdded.Value < 1 and creator ~= nil then
		wait()
		local sentry = game.ReplicatedStorage.Towers.Sentry:Clone()
		sentry.Parent = workspace.Towers
		sentry:WaitForChild("creator").Value = char.creator.Value
		char:WaitForChild('SentriesAdded').Value = char:WaitForChild('SentriesAdded').Value + 1
		creator:WaitForChild('leaderstats').Coins.Value -= 0
		sentry:WaitForChild("Placed").Value = true
		sentry:WaitForChild("PartialCreator").Value = char
		sentry:MoveTo(char:WaitForChild('SentryPosition').Position)
		char:WaitForChild('Torso').CFrame = CFrame.new(char:WaitForChild('Torso').Position,sentry:WaitForChild('turretBase').Position)
		script.Parent.Parent:WaitForChild('CurrentSentry').Value = sentry
		char:WaitForChild("IsBuilding").Value = true
		sentry:WaitForChild('Part2'):WaitForChild("BuildEffect").Enabled = true
		sentry:WaitForChild('Part1').Transparency = 0.55
		sentry:WaitForChild('Part2').Transparency = 0.55
		sentry:WaitForChild('Part3').Transparency = 0.55
		char:WaitForChild('Torso').deploy:Play()
		w:Play()
		char:WaitForChild('Items')["Auto Shotgun"].Transparency = 1
		w.Stopped:Wait()		
		sentry:WaitForChild('Part1').Transparency = 0
		sentry:WaitForChild('Part2').Transparency = 0
		sentry:WaitForChild('Part3').Transparency = 0
		print(w.Length)
		sentry.Part2:WaitForChild("BuildEffect").Enabled = false
		sentry:WaitForChild("IsBuilding").Value = false
		char:WaitForChild('Torso').CFrame = CFrame.new(char:WaitForChild('Torso').Position,char:WaitForChild('NormalPosition').Position)
		char:WaitForChild('Items')["Auto Shotgun"].Transparency = 0
		w:Stop()
		wait()
	else
		print('Failed to add sentry.')
	end
end)
#2

There is a good chance the script is waiting forever somewhere. This will be hard to fix unless you can find a reliable way to make it break. Try things like clicking to place really fast, clicking far away, clicking on the sky etc.

#3

No, its a tower that SUMMONS a ‘‘tower-like’’ unit near him, this is the place button when you click on him and click on his ability.

#4

It doesn’t matter what it is, if you find a way to cause the bug 100% of the time it will give you more information than only having it happen sometimes.