A device that shows some kind of memory leak in UEFN/Verse (creating and removing a bunch of UI widgets every frame)

slow_down_device.verse

using { /Verse.org/Simulation }
using { /Verse.org/Verse }
using { /Verse.org/Colors }
using { /Verse.org/Random }

using { /UnrealEngine.com/Temporary/UI }

using { /Fortnite.com/Devices }
using { /Fortnite.com/UI }

<#>
    After letting this device run for a while, the server will run slowly.
    Once you remove the device, the server will still keep running slowly 
    even on future publishes, until you end the session and start a new one. 
    It seems something like a memory leak (possibly a GC issue)
    
    
slow_down_device := class(creative_device):

    Canvas : canvas = canvas{}
    var ColorBlocks : []color_block = array{}

    OnBegin<override>()<suspends>:void =
        if:
            FirstPlayer := GetPlayspace().GetPlayers()[0]
            PlayerUI := GetPlayerUI[FirstPlayer]
        then:
            PlayerUI.AddWidget(Canvas)

        loop:

            for (ColorBlock : ColorBlocks):
                Canvas.RemoveWidget(ColorBlock)

            set ColorBlocks = array{}

            # make tons of new widgets every frame
            for (i := 1..30):
                ColorBlock := color_block:
                    DefaultColor := color {R := GetRandomFloat(0.0,1.0)}
                set ColorBlocks += array{ColorBlock}
                Canvas.AddWidget(canvas_slot {Widget := ColorBlock})
            
            Sleep(0.0)