Why do the weapons not remain in the player's backpack? [Solved]

Hello,

Looking at a previous problem from a different angle. Basically, after a player purchases a weapon, it appears in the StarterGear and Backpack, but once the player dies and re-spawns, the weapon is still in the StarterGear, but is no longer accessible via the Backpack.

Below is my Purchase script within my ShopGui which purchases the item and adds it to the StarterGear and BackPack:

local plr = game.Players.LocalPlayer
local replicatedstorage = game:GetService('ReplicatedStorage')
local amount = 30
local points = plr.leaderstats.Points
script.Parent.MouseButton1Click:connect(function()
    if plr.Backpack:FindFirstChild('GravityCoil') or plr.StarterGear:FindFirstChild('GravityCoil') or game.Workspace[plr.Name]:FindFirstChild('GravityCoil')then -- Change the name of the items.		
		 script.Parent.Parent.TextLabel.Text = 'You have already bought this item!'
			wait(3)
   		 script.Parent.Parent.TextLabel.Text = 'Welcome to the shop'
   		 else
		
	if plr.leaderstats.Points.Value >= amount then 
  		  	replicatedstorage.GravityCoil:Clone().Parent = plr.Backpack -- Item added to Backpack.
  		  	replicatedstorage.GravityCoil:Clone().Parent = plr.StarterGear -- Item added to StarterGear.
			plr.leaderstats.Points.Value = plr.leaderstats.Points.Value - amount  		  
else 
		
local pointsrequired = amount - points.Value 
	script.Parent.Parent.TextLabel.Text = 'You need '..pointsrequired..' more Points to buy this item!'
		wait(3)
	script.Parent.Parent.TextLabel.Text = 'Welcome to the shop'
end
end
end)

Now, inside my main script right after the random map process happens, I have the following code that adds a Sword to the player. I'm wondering if this code is interfering with the code above and preventing items from returning to a player's backpack after the re-spawn?

My main script is essentially the following:

-- Variables defined
-- Sets up Round
-- Teleport players to the map
-- Adds basic sword to player

local sword = game.ReplicatedStorage.Sword
			local newsword = sword:Clone()
			newsword.Parent = player.Backpack
				
		end
	end
end

-- End of Round/Teleport survivors back to the lobby
-- Rinse/Repeat

I've been given the following script to place inside Workspace, but it doesn't solve the problem of the weapons disappearing from the backpack on re-spawn:

local wm = Instance.new("Model")
wm.Name = "Weaps"

function give(weap, player) --add a weap to a player's weaps
	--return if they allready have a copy
	for _, w in ipairs(player.Weaps:GetChildren()) do
		if w.Name == weap.Name then return end
	end
	--return if the weaps is a startpack one
	for _, w in ipairs(game.StarterPack:GetChildren()) do
		if w.Name == weap.Name then return end
	end
	--add it to thier weaps
	weap:clone().Parent = player.Weaps
end

game.Players.ChildAdded:connect(function(p)
	wm:clone().Parent = p
	wait()
	p.Character.ChildAdded:connect(function(wep)
		if wep.className == "Tool" then
			give(wep, p)
		end
	end)
	p.Changed:connect(function(pr)
		if pr == "Character" then
			for _, w in ipairs(p.Weaps:GetChildren()) do
				w:clone().Parent = p.Backpack
			end
			p.Character.ChildAdded:connect(function(wep)
				if wep.className == "Tool" then
					give(wep, p)
				end
			end)
		end
	end)
	p.Backpack.ChildAdded:connect(function(h)
		if h.className == "HopperBin" then
			give(h, p)		
		end
	end)
end)

I know I've got to be overlooking or mistyping something very simple, I'm all ears/eyes for any solution here. x_x Thank you!

This was solved in the strangest way. I opened up a new session of studio, copied all of the contents from the old one into the new one...and it worked. I changed nothing. I don't understand what happened, but as long as it works. Roblox works in mysterious ways I guess.