Billboard attached to another billboard BUG after 38.0

Summary

Hello I noticed some issues with my project after 38.0 update. My game is highly dependant on moving bilboards, therefore bilboards are attached to each other.

In my game 3 bilboards are attached to main bilboard.
When mainbilboard moves with MoveTo method the others attached should move relatively.

I rolled back my project to 2 weeks ago and month ago when this functionality worked, but this didnt solve the problem.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Assets

Steps to Reproduce

Create main billboard and attach another one to it.

billboard_wrapper := class:
    @editable
    var BillboardInstance: billboard_device = billboard_device{} 
    @editable
    var BillboardInstanceRarity: billboard_device = billboard_device{} 
      @editable
    var BillboardInstanceCost: billboard_device = billboard_device{} 
      @editable
    var BillboardInstanceMoneyPerSec: billboard_device = billboard_device{} 



hello_world_device := class(creative_device):

    @editable
    var BillboardWrappers : []billboard_wrapper = array{}

    OnBegin<override>()<suspends>:void=
        spawn{MoveBillboardRelative()}



    MoveBillboardRelative()<suspends> : void =
        loop:
            for(BillboardWrapped : BillboardWrappers):
                Sleep(0.03) # Adjust frequency as needed, 0.03 is fast enough for smooth movement
            
                    # Calculate the button's position relative to the prop
                    MoveLocation := vector3{X:=0.0, Y:=11000.0, Z:=200.0}
                    
                    NewRotation := MakeRotationFromYawPitchRollDegrees(90.0, 0.0, 0.0)

                    # Move the button to the new location instantly
                    BillboardWrapped.BillboardInstance.MoveTo(MoveLocation, NewRotation, 40.0)
                Print("SLEEEEEEP 15");
                Sleep(10.0)


Expected Result

Main billboard moves together with attached billboard

Observed Result

Only main billboard moves. The attached one stays in place.

Platform(s)

PC