Unreal Engine Issues

GPU Particle may blink when rendered in scene capture.

Instance added Child Actors are not initialized when using world partition

A Child actor spawned via a Child Actor Component that is added to an actor instance using the Subobject Editor is not initialized when using world partition. The spawned child actor is not present ...

Custom data update crash - invalid memory when removing an instance from a UHierarchicalInstancedStaticMeshComponent

This is a race condition, did not crash with -onethread. Attached the collected threaded callstacks, although they look misaligned. Licensee has provided a suggested fix. ...

Can't connect Date Time and Time Spawn pins to math nodes

we can do a "cheap fix" here by adding the "IgnoreTypePromotion" metadata to the date time functions, but there are some underlying issues with the FindBestMatching func in this case causing it to f ...

Anisotropic metallic material and area lights don't work

Gameplay Effects with instant duration fail to be predicted if a duration magnitude was previously set

The Duration Magnitude property is not zeroed out if a Gameplay Effect's duration policy is changed from HasDuration to Instant. As a result, UAbilitySystemComponent::ApplyGameplayEffectSpecToSelf e ...

Crash when copying PF_Stencil format from the GPU to the CPU

This is a crash related to copying depth-stencil render targets to the CPU. See linked UDN for more info. ...

Arithmetic assignment operators (e.g. +=, *=) in Niagara inputs are applied twice .

Arithmetic assignment operators seem to be applied twice when committed in the Niagara stack.  This occurs when entering *= 2.0 for example into a float input. This may be the result of the SNiagar ...

Keep Playback Range In Section bounds can cause Actor Sequence range to be inclusive

FSequencer::UpdatePlaybackRange does not check the exclusivity of the new bounds when setting them, but UMovieScene::UpgradeTimeRanges does. ...

UEnhancedInputUserSettings::LoadOrCreateSettings does not handle the changing of a settings class in the editor

proposed fix seems ok to me:  UEnhancedInputUserSettings* UEnhancedInputUserSettings::LoadOrCreateSettings(ULocalPlayer* LocalPlayer) { UEnhancedInputUserSettings* Settings = nullptr; ...