Unreal Engine Issues
Unreal Engine Issues
Memory leak when rendering some meshes with ray tracing enabled
UE - Graphics Features - Jul 19, 2021This memory leak seems to be caused by the TMemStackAllocator of FRayTracingMeshCommandOneFrameArray. Using the FDefaultAllocator for FRayTracingMeshCommandOneFrameArray works as a workaround. // ...
Incorrect normal calculation when rotating a ProceduralMeshComponent
UE - Graphics Features - Jul 19, 2021Issue happens on meshes loaded from FBX and used to create a ProceduralMeshComponent with CreateMeshSection_LinearColor function ...
Material of Skeletal Mesh does not render correctly when using multi-UV with ES3.1 and using Render Static
UE - Platform - Mobile - Jul 15, 2021ES3.1 rendering does not render correctly when using TexCoord [1] in a material and RenderStatic on the SkeletalMeshComponent. ...
[CrashReport]UE4Editor-AudioMixerXAudio2!Audio::FMixerPlatformXAudio2::OpenAudioStream(Audio::FAudioMixerOpenStreamParams const &) [AudioMixerPlatformXAudio2.cpp:951]
UE - Audio - Jul 15, 2021This issue is occurring on startup for users. This could be potentially related to a recent Windows Update. ...
Cannot select child anim BPs for use in linked anim layers
UE - Anim - Runtime - Jul 15, 2021From UDN: [Link Removed] Unable to set a Child ABP with inherited interface to a Linked Animation Layer Instance Class. I have a ABP_Biped which is our main ABP. I have the locomotion (idle+straf ...
If enable Preview Slot of non-default slot in AnimMontage, AnimNotify of AnimationSequence does not run.
UE - Anim - Runtime - Jul 15, 2021The AnimSingleNodeInstance used in the AnimMontage preview does not consider multiple Slots. The following is a correction code. void UAnimSingleNodeInstance::SetAnimationAsset(class UAnimationAsse ...
Oculus Quest Link with OpenXR fires action events multiple times when multiple action events are bound to the same key
UE - Platform - XR - Jul 14, 2021From a developer: If the same key is mapped to N action events all the mapped events fire N times. This issue only exists with the OpenXR plugin enabled and does not occur for any keyboard/mouse i ...
Motion Blur Bug on 1st frame of camera change with sequence
UE - Graphics Features - Jul 14, 2021Renderdoc capture of the blurry frame is here - [Link Removed] It should have symbols attached to it but let me know if not and I can reupload (Jon Cain) It's coming from the motion blur pass but ...
Python Type Hinting
UE - Editor - Workflow Systems - Jul 13, 2021Goals / Why Type hints allow developers to create self-describing code by statically indicating the type of a value within your Python code.OutcomesBetter documented code for easier reading and debu ...
unreal.py stub can overload IDE parsing limits
UE - Editor - Workflow Systems - Jul 13, 2021We should consider splitting this into separate per-module files that are merged together via imports. Any strong dependencies (eg, inheritance) need to import the type being inherited. ...