Model:MoveTo() not updating the model's position properly

[0RedAce0 (numbers)]

I have a script that moves parts around an elevator. To smoothly move a range of parts, I have them all in a single model to make it easy to script them. I thought the issue was the while loop, but it turns out that :MoveTo() was not updating the model’s position for a while after the button was activated. After a few seconds, the model teleports to where it should have been and continues normally.

local buttonPressed = false
game:GetService("RunService").Heartbeat:Connect(function()
    local parts = workspace:GetPartBoundsInRadius(camera.CFrame.Position, 1, params)
    local inAnyPart = #parts ~= 0
    
    if inAnyPart then
        if not buttonPressed then
            print("touching") 
            buttonPressed = true
            local t0 = tick()
            while everythingElse:GetPivot().Position.Y > finalPos.Y do
                print("hihihih")
                local curr = (tick() - t0) * elevatorSpeed
                everythingElse:MoveTo(originalPos + Vector3.new(0, -curr, 0))
                task.wait()
            end
        end
    end
end)

I ended up solving it by using everythingElse:PivotTo(CFrame.new() + Vector3.new(0, -curr, 0)) instead. I thought PivotTo() and MoveTo() were the model equivalent of .CFrame and .Position for BaseParts, but it seems the two work differently than CFrame and CFrame.Positon.

[catinpsyop (astriddd)]

PivotTo and MoveTo are 2 different things.
PivotTo ensures that GetPivot will equal the passed CFrame.

If the model/PVInstance you are currently calling MoveTo on has a Y pivot, the while loop will likely never end, at least not in a timely manner.