Two scripts fundamentally the same but one doesn't work

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#1

In my game there is a ‘zoom’ system when right click its held (as with every other FPS game). There is also a binocular tool, with the same feature. However, when zooming in with the binoculars, I can very rarely zoom out - the function designated to un-zooming simply does not fire. However, the rifles zoom in and out perfectly fine, and the code for zooming in and out is almost entirely the same.

mouse.Button2Down:Connect(function()
	if equipped == true then
		zoom = true
		--script.Parent.Zoom:FireServer(true)
		print("Zoom in attempted")
		holdtrack:Stop()
		zoomtrack:Play()
		script.Parent.Parent.Zoom.Value = true
		GUI.Parent = game.Players.LocalPlayer.PlayerGui
	end
end)

mouse.Button2Up:Connect(function()
	print("Released right click")
	if equipped == true then
		GUI.Parent = script.Parent
		zoom = false
		script.Parent.Parent.Zoom.Value = false
		--script.Parent.Zoom:FireServer(false)
		print("Zoom out attempted")
		zoomtrack:Stop()
		holdtrack:Play()
	end
end)

This is the code for the binoculars. No errors are displayed, but the second function rarely fires.

mouse.Button2Down:Connect(function()
	if equipped == true then
		zoom = true
		--script.Parent.Zoom:FireServer(true)
		print("Zoom in attempted")
		holdtrack:Stop()
		zoomtrack:Play()
		script.Parent.Parent.Zoom.Value = true
		
	end
end)
mouse.Button2Up:Connect(function()
	if equipped == true then
		zoom = false
		script.Parent.Parent.Zoom.Value = false
		--script.Parent.Zoom:FireServer(false)
		print("Zoom out attempted")
		zoomtrack:Stop()
		holdtrack:Play()
	end
end)

This is the code for the rifle, which functions fine.

I have no doubt that it must be somewhere else in the code or a separate script entirely doing this, because there is no other reason for the code behaving this way. Does anybody have any ideas?