How can I always have these objects tweening in sync after one becomes desync

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1

I have these billboardguis that I make bounce up and down and when the player gets near it I cancel the tween and make it stationary and when they walk away the tween resumes, however, it’s now desync from the rest. I’d like all of them to always be tweening at the same time.

This is the code for it. Every object has a loop that just plays the tweens I know it’s not the most effective, but it works for now.

function MenuObject.new(menuID,triggerPart,billboardGui)
	local self = setmetatable({},MenuObject)
	
	self.menuID = menuID
	self.triggerPart = triggerPart 
	self.billboardGui = billboardGui
	
	self.currentTween = nil
	self.near = false
	self.downTween = TweenService:Create(billboardGui,info1,goals1)
	self.upTween = TweenService:Create(billboardGui,info2,goals2)
	self.command = OpenMenuCommand.new(menuID)
	
	--TODO: Clean this up
	task.spawn(function()
		while true do
			task.wait()
			if self.near then continue end
			self.currentTween = self.downTween
			self.currentTween:Play()
			task.wait(.3)
			self.currentTween = self.upTween
			self.currentTween:Play()
			task.wait(1)
		end
	end)	
	
	return self
end

-- function to run when plyer is near 
function MenuObject:triggerEntered()
	self.near = true
	self.currentTween:Cancel()
	self.billboardGui.StudsOffset = Vector3.new(0,0,0)
	self.billboardGui.Text.Visible = true
end

-- function to call when player is no longer near
function MenuObject:triggerExited()
	self.near = false
	self.billboardGui.Text.Visible = false
end