Unreal Engine Issues

RemoveWindSource modifies game thread array while in a parallel for loop.

FScene::RemoveWindSource is called from a parallel for loop, and concurrently deletes wind component pointers from the same game thread array causing crashes when the scene contains multiple wind so ...

Nativized blueprint does not support reading values from TRange structs

Compile errors will occur during packaging with Blueprint nativization enabled if e.g. "Get" nodes are placed in a Blueprint on FFloatRange struct types (or any other explicit TRange derivative) and ...

Enum to string conversion has different results in PIE vs Cooked builds

This is because the metadata is editor only and will be stripped in a cooked build. We should make the behavior of the to string function consistent between PIE and a cooked build. ...

Ensure in MovieScenePropertyTrack when packaging

USkeletalMesh::SetSkeleton function is not a BlueprintSetter

I have a fix ready for this in cl: 17967661 ...

FFieldPath resolution doesn't handle redirection

A licensee has found that redirectors don't apply to FFieldPath. We should integrate it with the following changes:It needs better error handling (looks like it could infinitely recurse),The change ...

GAS: Mixed replication mode and error in MinimalReplicationTags code

We're on 4.25.4. We recently turned on mixed mode replication for GAS, which seems to work fine and reduce bandwidth as expected. However one of our unit tests started failing with this error messag ...

Type Promotion nodes break connections to other nodes

SpeedTree asset import data seemingly not marked editor only object

Licensee reports log spam when running editor in -game mode, complaining that a SpeedTreeImporter plugin object can't be loaded. This would be because some UObject defined by the SpeedTree editor p ...

Material slot assignment incorrect after mesh reduction completely removes all triangles from a section

When mesh reduction results in a section becoming empty, the material slots are incorrectly assigned. e.g. if section 0 gets removed due to it having no triangles after reduction, then its material ...