ObjectValue doesn't register change when value is deleted?

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#1 
local function MakeOrb(Hole , Value)
	if Value == nil then

		spawn(function()
			local orb = game.ReplicatedStorage.Orb:Clone()

			orb.Parent = workspace
			Hole.Sphere.Value = orb
			orb.Position = Hole.Position - Vector3.new(0,3,0)
			orb.BodyVelocity.Velocity = Vector3.new(0,5,0)
			repeat
				wait()
			until orb.Position.Y > Hole.Position.Y + 2.5
			orb.BodyVelocity.Velocity = Vector3.new(0,0,0)
			
		end)
	end
end
for i , v in pairs(script.Parent.Holes:GetChildren()) do
	MakeOrb(v , nil)
	v.Sphere:GetPropertyChangedSignal("Value"):Connect(function(Value)
		print(v.Sphere.Value)
		MakeOrb(v , v.Sphere.Value)
	end)
end

This script copies an orb instance to the workspace and does it again when the orb is deleted, problem is, i was relying on the orb being destroyed counting as a change in objectValue’s value, this doesn’t seem to be the case.
What can I do then?

#2

Listen for the sphere itself to change instead, destroying an instance parents it to nil (among other things) which fires the .AncestryChanged event before all of the connections are disconnected. Also, try returning the orb just to make things easier:

	    local orb = game.ReplicatedStorage.Orb:Clone()
        spawn(function()
			orb.Parent = workspace
			Hole.Sphere.Value = orb
			orb.Position = Hole.Position - Vector3.new(0,3,0)
			orb.BodyVelocity.Velocity = Vector3.new(0,5,0)
			repeat
				task.wait()
			until orb.Position.Y > Hole.Position.Y + 2.5
			orb.BodyVelocity.Velocity = Vector3.new(0,0,0)
        end)
        return orb

local function handleAncestryChanged(orb)
    v.Sphere.Value = orb
    orb.AncestryChanged:Connect(function()
        if not orb.Parent then
            print('Orb was destroyed or parented to nil!')
            handleAncestryChanged(makeOrb(v))
        end
    end)
end
handleAncestryChanged(makeOrb(v))
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