Extending the size of hitboxes for unanchored parts

[GrandMarineLCS (Super Mario)]

Hi,
As you may know, you can’t change the size of a part’s hitbox.
I’ve been trying to increase the size of unanchored parts’ hitboxes, by making an invisible part and doing stuff with it,so players just don’t walk over them - instead they actually push the object, like other games.
Please take this post for reference: How can i optimize this?
I have tried so many things, but either my studio outright crashes - or if i run my game through the roblox client nothing loads, and my camera is completely frozen.
Please help, thank you.

[HeyiDoStuf]

add a part inside the unanchored part which will be the hitbox, weld the unanchored and hitbox part together.

[KJry_s (MalleoZephyris)]

Weld the hitbox to the unanchored part.

[GrandMarineLCS (Super Mario)]

I am doing exactly that, but the problem here lies with CollectionService, here is my code:

workspace.DescendantAdded:Connect(function(descendant)
	if descendant:IsA("BasePart") and descendant.Anchored == false and not descendant:IsA("FileMesh") then
		CollectionService:AddTag(descendant, "Unanchored")
	end
end)

for _, part in workspace:GetDescendants() do
	if part:IsA("BasePart") and part.Anchored == false and not part:IsA("FileMesh") then
		CollectionService:AddTag(part, "Unanchored")
		
		local BoundingBox = Instance.new("Part")
		BoundingBox.Name = DEFAULT_BOUNDINGBOX_NAME
		BoundingBox.Size = part.Size * 1.3
		BoundingBox.Transparency = 1
		BoundingBox.CFrame = part.CFrame
		BoundingBox.Massless = true
		BoundingBox.Parent = part
		local Weld = Instance.new("WeldConstraint")
		Weld.Part0 = part 
		Weld.Part1 = BoundingBox
		Weld.Parent = BoundingBox
		part.CanCollide = false
		table.insert(BoundingBoxes, BoundingBox)
	end
end

CollectionService:GetInstanceAddedSignal("Unanchored"):Connect(function()
	local UnanchoredParts = CollectionService:GetTagged("Unanchored")
	for _, part in UnanchoredParts do
		if part:FindFirstChild(DEFAULT_BOUNDINGBOX_NAME) then
			continue
		else
			local BoundingBox = Instance.new("Part")
			BoundingBox.Name = DEFAULT_BOUNDINGBOX_NAME
			BoundingBox.Size = part.Size * 1.3
			BoundingBox.Transparency = 1
			BoundingBox.CFrame = part.CFrame
			BoundingBox.Massless = true
			BoundingBox.Parent = part
			local Weld = Instance.new("WeldConstraint")
			Weld.Part0 = part 
			Weld.Part1 = BoundingBox
			Weld.Parent = BoundingBox
			part.CanCollide = false
			table.insert(BoundingBoxes, BoundingBox)
		end
	end
end)

This code crashes studio, and i have no idea why.

[GrandMarineLCS (Super Mario)]

nevermind it was a simple check