Unanchored Part with a proximity prompt not staying on the same relative position as the rest of the model

[That1RandomDev (random)]

I’m making a system where you can pick up dropped items with a proximity prompt, which are models of an item that you get when you pick it up. You can pick up the items normally the first time, however, if you drop that item the “InteractPart” that’s welded to all the other parts and is where the proximity prompt resides in the dropped item is in a different position when you drop it, specifically, your right arm, while the rest of the model is in a different position.

Item Manager Local Script (In Gui in StarterGui)

local Gui = script.Parent

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local MinorEvents = ReplicatedStorage:FindFirstChild("Minor Events")
local DroppedItems = workspace:FindFirstChild("Dropped Items")

local DropButton = Gui:FindFirstChild("DropButton")

local PickUpItemEvent = MinorEvents:FindFirstChild("Pick Up Item")
local DropItemEvent = MinorEvents:FindFirstChild("Drop Item")

local Player = game:GetService("Players").LocalPlayer

local GrabItemSound = Gui:FindFirstChild("Grab Item")

local function PromptPickup(droppedItem)
	local PickUpPrompt = Instance.new("ProximityPrompt")
	PickUpPrompt.Name = "Pick Up Prompt"
	PickUpPrompt.ClickablePrompt = true
	PickUpPrompt.RequiresLineOfSight = false
	PickUpPrompt.ObjectText = droppedItem.Name
	PickUpPrompt.ActionText = "Pick Up"
	PickUpPrompt.Exclusivity = "AlwaysShow"
	PickUpPrompt.MaxActivationDistance = 20
	PickUpPrompt.Enabled = true
	PickUpPrompt.Parent = droppedItem:FindFirstChild("InteractPart")

	PickUpPrompt.Triggered:Connect(function()
		PickUpItemEvent:FireServer(droppedItem)
		GrabItemSound:Play()
	end)
end

DroppedItems.ChildAdded:Connect(function(ItemAdded)
	PromptPickup(ItemAdded)
end)

for i, droppedItem in pairs(DroppedItems:GetChildren()) do
	PromptPickup(droppedItem)
end

DropButton.Activated:Connect(function()
	if Player.Character:FindFirstChildOfClass("Tool") then
		DropItemEvent:FireServer(Player.Character:FindFirstChildOfClass("Tool"))
	end
end)

Item Manager in ServerScriptService

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Items = ReplicatedStorage:FindFirstChild("Items")
local DroppedItemsStorage = ReplicatedStorage:FindFirstChild('DroppedItems')
local MinorEvents = ReplicatedStorage:FindFirstChild("Minor Events")

local DroppedItems = workspace:FindFirstChild("Dropped Items")

local PickupItemEvent = MinorEvents:FindFirstChild("Pick Up Item")
local DropItemEvent = MinorEvents:FindFirstChild("Drop Item")

local function FindSameItem(Player, Item)
	for i, PossibleItem in pairs(Player.Backpack:GetChildren()) do
		if PossibleItem:FindFirstChild("ItemStats"):FindFirstChild("Name").Value == Item.Name then
			return PossibleItem
		end
	end
	for i, PossibleItem in pairs(Player.Character:GetChildren()) do
		if PossibleItem:IsA("Tool") then
			if PossibleItem:FindFirstChild("ItemStats"):FindFirstChild("Name").Value == Item.Name then
				return PossibleItem
			end
		end
	end
	return nil
end

local function FindItemToDrop(Item)
	for i, PossibleDroppedItem in pairs(DroppedItemsStorage:GetChildren()) do
		if PossibleDroppedItem:FindFirstChild("Item").Value.Name == Item:FindFirstChild("ItemStats"):FindFirstChild("Name").Value then
			return PossibleDroppedItem
		end
	end
end

PickupItemEvent.OnServerEvent:Connect(function(Player, DroppedItem)
	if not FindSameItem(Player, DroppedItem:FindFirstChild("Item").Value) and #Player.Backpack:GetChildren() <= 6 then
		local NewItem = DroppedItem:FindFirstChild("Item").Value:Clone()
		NewItem.Parent = Player.Backpack
		DroppedItem:Destroy()
	elseif FindSameItem(Player, DroppedItem:FindFirstChild("Item").Value) then
		local CurrentItem = FindSameItem(Player, DroppedItem:FindFirstChild("Item").Value)
		if CurrentItem:FindFirstChild("ItemStats"):FindFirstChild("Amount").Value < 30 then
			CurrentItem:FindFirstChild("ItemStats"):FindFirstChild("Amount").Value += 1
			CurrentItem.Name = CurrentItem:FindFirstChild("ItemStats"):FindFirstChild("Name").Value .. " (" ..  CurrentItem:FindFirstChild("ItemStats"):FindFirstChild("Amount").Value .. ")"
			DroppedItem:Destroy()
		end
	end
end)

DropItemEvent.OnServerEvent:Connect(function(Player, Item)
	if Item:FindFirstChild("ItemStats"):FindFirstChild("Amount").Value > 1 then
		Item:FindFirstChild("ItemStats"):FindFirstChild("Amount").Value -= 1
		local DroppedItem = FindItemToDrop(Item):Clone()
		DroppedItem.Parent = DroppedItems
		DroppedItem.PrimaryPart.Position = Player.Character:FindFirstChild("Right Arm").Position
		Item.Name = Item:FindFirstChild("ItemStats"):FindFirstChild("Name").Value .. " (" ..  Item:FindFirstChild("ItemStats"):FindFirstChild("Amount").Value .. ")"
		if Item:FindFirstChild("ItemStats"):FindFirstChild("Amount").Value == 1 then
			Item.Name = Item:FindFirstChild("ItemStats"):FindFirstChild("Name").Value
		end
		DroppedItem.PrimaryPart.Velocity = Vector3.new(0,0,0)
	elseif Item:FindFirstChild("ItemStats"):FindFirstChild("Amount").Value == 1 then
		local DroppedItem = FindItemToDrop(Item):Clone()
		DroppedItem.Parent = DroppedItems
		DroppedItem.PrimaryPart.Position = Player.Character:FindFirstChild("Right Arm").Position
		
		Item:Destroy()
	end
end)