Tweening a part with welded parts together is not working

[Koki0991 (Koki)]

So I am trying to tween a door with a handle and other texture parts inside of the main part, so when I tween the main part, the parts inside do not move.

local TweenService = game:GetService("TweenService")

local RightDoor = script.Parent.MainCarrier
local RightDoorButton = script.Parent.ButtonsPanel.DoorButton.ClickDetector

local DoorTargetUp = Vector3.new(5.327, 20.5, -0.354)
local DoorTargetDown = Vector3.new(5.327, 13.575, -0.354)

local DoorTweenInfo = TweenInfo.new(
	0.25,
	Enum.EasingStyle.Quart,
	Enum.EasingDirection.InOut
)

local TweenUp = TweenService:Create(RightDoor, DoorTweenInfo, {Position = DoorTargetUp})
local TweenDown = TweenService:Create(RightDoor, DoorTweenInfo, {Position = DoorTargetDown})

RightDoorButton.MouseClick:Connect(function()
	if RightDoor.Position == DoorTargetDown then
		TweenUp:Play()
	else
		TweenDown:Play()
	end
end)

Just to clarify, I have weld constraints that are welding those parts to the main part I am tweening, but they are not moving.

[Scottifly]

The main Part has to be Anchored for tweening by CFraming. I don’t think Position will work.