In UE 5.4, some config variables are not getting saved correctly, due to the new User/Editor rules.

UE - Simulation - Visual - Jul 24, 2024

A lot of properties are not getting saved correctly to custom configuration files. This looks like that it can be cause by the FConfigContext::PerformLoad function. New conditionals have been added ...

Nested PackedLevelActor bounds issue

UE - World Creation - Worldbuilding Tools - Level Instances - Jul 23, 2024

Reflection Captures permanently unload with world streaming

UE - Graphics Features - Jul 19, 2024

When a reflection capture is unloaded due to streaming, it cannot be reloaded when the player returns to that area in the world because FReflectionCaptureData::OnDataUploadedToGPUFinal deletes the C ...

Spawnable Post Process Volume does not draw bounded values after saving and reopening a level

UE - CoreTech - Jul 19, 2024

Reproduction Attempts: 3/3 Doing some additional testing for Spawnable Post Process Volumes in a level sequence, the PPV does not appear after saving the level and level sequence, closing and reope ...

UHapticFeedbackEffect_SoundWave Initialize does not populate Raw Data in the HapticsBuffer

UE - Platform - XR - Jul 19, 2024

From the UDN:  >  Open HapticsFeedbackEffect.cpp and naivgate ~ line 150; note HapticBuffer has length populated but never write the actual buffer data. LikeReplySelect as Best Seems like a simple f ...

Scalebox scaling won't update if child size changes with global invalidation enabled

UE - Editor - UI Systems - Slate - Jul 17, 2024

When global invalidation is enabled, Scale Boxes don't react properly to changes in the size of their contents. Licensees have worked around this by updating SScaleBox::OnArrangeChildren:// This sca ...

Issue when turnning a character into ragdoll using PhysicsControlComp with async physics

UE - Anim - Synthesis - Jul 16, 2024

When turnning a moving character into ragdoll, it freeze a bit with TickPhysicsAsync on. If we log the character's pelvis position, it seems jump backward in the first few ticks. Also, it only happ ...

Crash when load the levelinstance what is set "LevelBehavior=Standalone" in the stanadalone game

UE - World Creation - Worldbuilding Tools - Level Instances - Jul 16, 2024

A crash occurs when LevelInstance with LevelBehavior set to "Standalone" is loaded in a standalone game. Specifically, when LevelInstance is deleted by moving outside the loading range of the worldp ...