Unreal Engine Issues
Unreal Engine Issues
Vertex Color Information Lost on Editor Restart
Tools - Apr 19, 2018This is a regression. In 4.19 and Main (CL 4008322), vertex color information does not save properly and data is lost when editor is reopened. Creating project from scratch instead of copying over f ...
LevelSequenceActorSpawner::GetLevelStreaming() fails to compare sub level names when running in Pie
UE - Anim - Sequencer - Sep 26, 2019The problem is in the function with signature "ULevelStreaming* GetLevelStreaming(FString SafeLevelName, UWorld& World)" within LevelSequenceActorSpawner.cpp at line 30. The problem is with the Safe ...
Some textures stretched on Mobile device
UE - Platform - Mobile - Sep 8, 2015User's content is here: "P:\temp\UrbanJogging.zip" "If you start up the game or go into the content, the issue is on Track One, on the first bend on the right. Also be careful with the sprint bu ...
[CrashReport] UE4Editor_Engine!TArray<FVertexFactoryTypeDependency,FDefaultAllocator>::ResizeTo() [array.h:2372]
UE - Graphics Features - Jul 5, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Source Context:2357 FORCENOINLINE void ResizeShrink() 2358 { 2359 co ...
Changing transform variable value of actor blueprint does not update child actor component using the set actor
UE - Gameplay - Blueprint - Dec 2, 2016If an actor blueprint contains a Transform variable, setting that blueprint as the child actor component (CAC) of another blueprint / blueprint instance then updating the transform variable in the o ...
Unable to use OpenXR with non-Oculus Android platforms
UE - Platform - XR - Dec 1, 2022From Licensee: In OpenXRHMDModule:473 (UE5.0) or OpenXRHMDModule:497 (UE5.1) the engine is checking if the app is packaged for Oculus Mobile, if it isn't the case the function returns false and the ...
OnParticleCollide doesn't return Velocity on every bounce
UE - Niagara - Jun 2, 2017OnParticleCollide doesn't return Velocity on every bounce. In code it lists all the return pins trigger 'on kill'; however, all other pins return correctly on each bounce but the velocity does not. ...
[CrashReport] UE4Editor_UnrealEd!UEditorEngine::FinishDestroy() [editorengine.cpp:857]
Tools - Mar 28, 2016Error message: Assertion failed: PlayWorld == NULL [Link Removed] [Line: 854] Source Context:842 void UEditorEngine::BroadcastObjectReimported(UObject* InObject) 843 { 844 ...
Render in Movie Render Queue with High Resolution Tiling Overlap causes dark pixels
UE - Anim - Sequencer - MRQ - Jun 13, 2024From UDN: thanks for your reply. I have attached a very basic scene with a MRQ settings preset. The only thing I have changed in the scene is that I've set the Camera Exposure to manual, as it do ...
net.ReplicateCustomDeltaPropertiesInRepIndexOrder is not respect the cvar for the custom properties
UE - Networking - Nov 5, 2025In our project do not use iris and we use a subclass UExtendAbilitySystemComponent derived from UAbilitySystemComponent. In this subclass, there is a FastArray member variable named ExtendActivatabl ...