Scene graph mesh components not displaying

[BenPen]

Summary

Scene graph mesh components with pre fabs randomly will not display if spawned into the world from code after certain distances

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Other

Steps to Reproduce

Spawn a prefab entity that has a mesh component into the world. Keep running further and further from 0,0,0 and you will notice the entity not showing its mesh component 100% of the time even though the simulation will still run.

Expected Result

Mesh component and simulation should display 100% of the time.

Observed Result

Mesh component does not display 100% of the time

Platform(s)

PC

Video

Scene graph mesh components bug

Additional Notes

Here is the verse code I am using. I get a NPC simulationEntity and add my Magic_Entity to that simulation to bring it into the world then setting the location of the new entity to the global Transform of the player. I do something similar with the Scene graph entities in my boss fight that I show in the video, all of my boss fight mesh components are not showing as well.

SpawnEntity(Player : c_player, Magic_Entity : entity):void=
if(FC := Player.Player.GetFortCharacter):
Loc := (/Verse.org/SpatialMath:)transform :
Translation := FromVector3(FC.GetTransform().Translation) + (/Verse.org/SpatialMath:)vector3:
Up := ZOffset
Rotation := FromRotation(FC.GetViewRotation())
if(World := NPC.GetSimulationEntity):
World.AddEntities(array{Magic_Entity})
Magic_Entity.SetGlobalTransform(Loc)

        if(VerseComponent := Magic_Entity.GetComponent[magic_damage_component]):
            set VerseComponent.MaybePlayer = option{Player}
        if(VFXComponent := Magic_Entity.GetComponent[magic_vfx_component]):
            set VFXComponent.MaybePlayer = option{Player}
        if(SphereComponent := Magic_Entity.GetComponent[magic_sphere_component]):
            set SphereComponent.MaybePlayer = option{Player}

[BenPen]

Any updates on this? Spawning Scene graph entities that have meshes for my boss are even worse and it has been this way since the beta got released.

Only this 1 row displays visually even though all the red spikes + the orange spikes are supposed to be there too. They just don’t visually show, collision is there when I run around.

The left image is from when scene graph was in experimental. I’m happy to provide whatever is needed to help this get fixed!

[nicoplv]

Same issue on my game, when i teleport the player somewhere, and i comeback to my hub, some objects are gone.

In the video you can compare the 5 first seconds and the last 5 seconds

[Bug-Reporter]

FORT-933277 changed to ‘Needs More Info’. We’re missing information that would help us determine the source of the issue.

[BenPen]

What information? I am happy to provide whatever is needed

[Sprintermax]

@BenPen

Bouncer, Chiller, and Launch Pad are missing from the content browser

“Needs more info” is not always related to wrong or lack of information on the bug report itself, as already explained by some staff on other posts, that can mean that the internal team needs to study the case to see why it happened/the change occured, if it was on purpose by some decision, or if it needs some extra steps internally before actively working on a fix for it. It does not always mean that the report is wrong or lacking information to reproduce or understand it, is just a generic me…

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I can confirm this bug happening (no visuals but collision existing). It happens somewhat randomly, specially when doing actions such as first adding an entity to the scene during runtime, reparenting and removing/readding to scene…

Example video of it happening when reparenting:

[GameExp (GameExpF)]

I’m having a similar problem, but it triggers randomly. All of my scene graph entities are pre-placed in the editor. The majority of times all of them are working correctly, but when they do break, it happens to multiple instances at once.

Each entity has three components:
MyOwnComponent - Teleports a beacon to the entity and enables it
mesh_component
CustomInteractableComponent - A subclass of interactable_component, handling some additional logic.
That’s a simplified list, they are made out of 2 other entities as well, but I won’t go into that.

The beacons are teleported to the entities, but all other components are not active: the mesh is not visible, the interaction is not enabled. In my experience, the issue only happens to the entities far out of the players’ world partition loading range. All players have the same entities instances not working, so the issue is server-side.

[natereese (NATE)]

We’ve encountered this as well. When we disable nanite virualization in our settings - the bug resolves itself. Not a workaround for shipping, but helped us in production.