Updating a Part's CFrame to match a character's HumanoidRootPart is delayed

Help and Feedback Scripting Support
1

I am trying to get a part’s CFrame to match the CFrame of a HumanoidRootPart.
However, when I do this, the orientation of the part seems to be delayed by at least one frame. I am currently updating the code in a PreRender loop. The bizarre thing is the position perfectly matches the HumanoidRootPart despite the orientation always being off.

I’ve tried switching RenderStepped with PreRender and :BindToRenderStep (using Enum.RenderPriority.Last) yet this still doesn’t get the orientation to update properly.

Code: 
local RunService = game:GetService("RunService")
local Players = game:GetService("Players")

local localPlayer = Players.LocalPlayer
local character = localPlayer.Character
local humanoidRootPart = character.HumanoidRootPart

local testPart = Instance.new("Part")
testPart.CanCollide = false
testPart.Anchored = true
testPart.Parent = workspace

local function updatePart()
	testPart.CFrame = humanoidRootPart.CFrame
end

RunService.RenderStepped:Connect(updatePart)

Video of issue (notice how the part follows my position without delay but not my orientation)

2

Try using Heartbeat instead of RenderStepped.

All you gotta do is change the last line to RunService.Heartbeat:Connect(updatePart).

3

Unfortunately doing that did not fix the issue :pensive:

4

Alright let’s try to change the updatePart function.

So instead of changing the CFrame let’s change the Position and Orientation seperately.

So here’s the new function:

local function updatePart()
	testPart.Position = humanoidRootPart.Position
	testPart.Orientation = humanoidRootPart.Orientation
end
5

I just tried that (one time with Heartbeat and another time with RenderStepped) and that had the same issue in both cases.

6

If the part isn’t anchored, you probably want to reduce it’s mass via density.

7

That doesn’t change anything as I’m positioning the part by setting its CFrame and not with BodyMovers (also the part is anchored anyways)