Unreal Engine Issues

Static Mesh Scene Actor Flipped Normals

Static meshes can have normals flipped when the actor they are attached to has one component of its scale inverted. ...

Lumen causing exposure issues when several viewports are opened

Gameplay ability sending server RPC can disconnect client during seamless travel

During seamless travel, the engine renames kept actors into the transition/destination level. This process results in the actor's components being unregistered and re-registered. For the ability sys ...

Subobject of garbage actor may be reassigned to newly created actor on the client

When an actor channel is cleaned up, the actor and its subobjects in the CreateSubObjects array are destroyed/marked as garbage in DestroyActorAndComponents. However, default subobjects are not adde ...

Attachment changes on the client for non-replicated actor may be stomped by replication

For projects relying on attachment to be performed on the client before the server, such as to prevent latency, this can result in attachments being overridden when USceneComponent::OnRep_AttachChil ...

[MetaSounds][Builder API] - Editor crashes when setting node position to a large value

Setting the location of a node a the MetaSound Editor Subsystem to a very large value crashes the editor.Unhandled Exception: EXCEPTION_STACK_OVERFLOW Crash reporter link: [Link Removed] ...

Blueprint actor component properties do not automatically flush dormancy when set

UK2Node_VariableSet::ShouldFlushDormancyOnSet only returns true for classes that derive from AActor. This leads to inconsistent behavior, as the owning actor will not have FlushNetDormancy called on ...

The pak file specified in PakFileRules is not created correctly

The rules by which chunks are created are ambiguous and currently do not ensure that both PakFileRules and PrimaryAssetLabel settings are reflected. In this sample, depending on the PrimaryAssetLabe ...

"Used with Particle Sprites" prevents material instances thumbnails from being editable

The thumbnails helpers will force material instances to be a plane, if their parent material is unedited. This can be worked around by editing the parent material, but editing the material instance ...

Welding doesn't work until the first time the actor simulates