USceneComponent::PropagateTransformUpdate could avoid calls to MarkRenderTransformDirty when transform does not change

UE - Gameplay - Nov 16, 2016

From the UDN: "In USceneComponent::PropagateTransformUpdate, even when Transform has not changed, Bounds are updated and MarkRenderTransformDirty is called. I think that judging whether Bounds have ...

[CrashReport] FGraphActionNode::~FGraphActionNode()

UE - Rendering Architecture - Materials - Sep 28, 2017

This is a trending crash coming out of the 4.18 Previews. User Descriptionstrying to use media framework in mpseemingly random crashes, mostly when interacting with blueprint editorctrl drag float ...

PSO Creation hangs on task in Shipping build

UE - Rendering Architecture - RHI - Nov 27, 2023

Running with `r.AsyncPipelineCompile=0` causes the issue not to happen. It fails to open about 4 times out of 5. No such problem in development build., it always succeeds. We noticed that if we de ...

[CrashReport] UE4Editor_Renderer!FSceneRenderer::CreateWholeSceneProjectedShadow() [shadowsetup.cpp:1978]

UE - Graphics Features - Oct 2, 2017

This is a trending crash coming out of the 4.18 Previews. Users have not provided any descriptions of their actions when the crash occurred. Source Context 1964 // Determine the amount o ...

BP-implemented BT decorators end up thinking they're not on active branch

UE - AI - Mar 13, 2015

This issue makes BP BT decorators not being able to run condition checking every tick. The core issue is here: bool UBTDecorator_BlueprintBase::GetShouldAbort(UBehaviorTreeComponent& OwnerComp) co ...

[CrashReport] UE4Editor_Foliage!FMulticastDelegateBase<FWeakObjectPtr>::CompactInvocationList() [multicastdelegatebase.h:159]

UE - World Creation - Worldbuilding Tools - Foliage - Aug 15, 2017

This is a trending crash coming out of the 4.17 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context 150 /** 151 * Removes ...

The Editor will crash on load if a class contains a CanvasRenderTarget2D that is set using CreateCanvasRenderTarget2D.

Tools - Oct 23, 2014

Adding a CanvasRenderTarget2D* UPROPERTY to a class and setting it using CreateCanvasRenderTarget2D will cause the Editor to crash on load. CRASHREPORT: [Link Removed] UDN: This was also reported ...

Seamless travel is preventing Server Travel

UE - Gameplay - May 10, 2021

Seamless travel seems to not be functioning properly.  With Run Under One Process set to false and Seamless travel enabled, the ServerTravel command is not bringing the server to the specified map.  ...

Enabling Override Instance Data to a LevelSequencerActor that has a Shot Track can lead to crashing the engine

UE - Anim - Sequencer - Mar 17, 2025

Enabling Override Instance Data to a LevelSequencerActor that has a Shot Track can lead to an Actor being translated really far, or even a crash in the engine. The licensee has encountered a particu ...

Mac defaults to device 0 for new Audio Mixer

UE - Audio - May 30, 2017

Users are pointing out issues with the new Audio Mixer on Macs. We have already responded on the forum post and are aware of its current state. One user has identified the issue with "default macOS ...