why the part properties doesn't change and the code just skipped it?

for i, v in pairs(button:GetChildren()) do 
	if v:FindFirstChild("Dependency") then	--this line
		v.BuyButton.Transparency = 1 
		v.BuyButton.CanCollide = false
		v.AttemptBuy.Value = false
		print(v)                            --until here
		else 
			while true do
			for j, l in pairs(button:GetChildren()) do
				if l.AttemptBuy.Value == true then
					
					l.BuyButton.Touched:Connect(function(hit)
						local player = game.Players:GetPlayerFromCharacter(hit.Parent)
						if not owner.Value then
							return
						end
							print(player.Name)
							for i, v in pairs(FurnitureTable) do
								if v.Name == l.Purchase.Value then
									if l.AttemptBuy.Value == true then
										if player.name == owner.Value.Name then
									local leaderstat = player:WaitForChild("leaderstats")
											local money = leaderstat:WaitForChild("Money")
											local cost = l.Cost.Value
												if money.Value >= cost then
													l.BuyButton.Parent:Destroy()
													v.Parent = PurchasedItem
														for n, m in pairs(v:GetChildren()) do

														local oriPm = m.Position
														local oriPx = m.Position.x
														local oriPy = m.Position.y
														local oriPz = m.Position.z
											
														local results = 
															{
																Transparency = 0;
																Position = oriPm
															}										 
														
														local x = math.random(oriPx-15, oriPx+5)
														local y = math.random(oriPy-1, oriPy+10)
														local z = math.random(oriPz-5, oriPz+5)

															

															m.Position = Vector3.new(x, y, z)
															local Start = tweenS:Create(m, info, results)
															wait()
															Start:Play()
														end	

													money.Value -= cost
														for z, x in pairs(button:GetChildren()) do
															if x:FindFirstChild("Dependency") then
																if x.Dependency.Value == v.Name then
																	x.BuyButton.Transparency = 0
																	x.BuyButton.CanCollide = true
																	x.AttemptBuy.Value = true
																	print("1 done")
																end
															end
														end
												end
										end
									end
								end
							end
					end)
					
				end
			
			end
wait()
		end
	end
end

i can confirm that the "Dependency" a name of a string value is in the folder. specifically this line here

if v:FindFirstChild("Dependency") then	--this line
		v.BuyButton.Transparency = 1
		v.BuyButton.CanCollide = false
		v.AttemptBuy.Value = false
		print(v)                            --until here