Unreal Engine Issues
Unreal Engine Issues
Failure packaging for android that supports both armv7 arm64 with GoogleVR plugin enabled
UE - Platform - XR - Aug 30, 2016Unable to package a build for android (ATC) if the GoogleVR plugin is enabled and both arm64 and armv7 are supported. This does not reproduce if you turn off GoogleVR. This does not reproduce if yo ...
Destructible mesh traces fail after switching collision response
UE - Simulation - Physics - Destruction - Jun 15, 2017User reported issue on UDN, steps above and project attached. ...
NiagaraSystem is compiled every time when first loaded in the editor
UE - Niagara - May 20, 2022If you are using a large amount of Niagara, you will experience excessive load times in PIE even if nothing is changed. The following code change seems to be effective as an interim response. void ...
Pending Abilities are always Added then Removed (thus ordering is not preserved)
UE - Gameplay - Gameplay Ability System - Apr 20, 2023We should probably keep a Queue of the Gameplay Abilities Add/Removed rather than two separate lists. That way we can get the ordering right. I suspect there are lots of ordering issues if we look ...
Simple collision Landscape returns incorrect physical material
UE - LD & Modeling - Terrain - Landscape - Oct 16, 2019When a landscape uses simple collision, the returned physical material can be mismatched. This seems to be a result of ConvertHeightfieldDataForPhysx within ULandscapeHeightfieldCollisionComponent: ...
GPU time is not tracked in StatFPSChart on Android
UE - Platform - Mobile - Jul 20, 2018This issue doesn't occur on iOS using the same project. This occurred on all the devices tested, which were: Galaxy S6 (SM-G920F), v6.0, Mali T760MP8 Galaxy S7 (SM-G930V), v7.0, Adreno 530 Galaxy S ...
LineTraceComponent does not respect bEnablePerPolyCollision
UE - Simulation - Physics - Feb 26, 2019USkeletalMeshComponent::LineTraceComponent does not properly consider bEnablePerPolyCollision. It appears to use the component's bodies, which are empty. It should be sufficient to use UPrimitiveCom ...
Child widgets do not maintain the Enhanced Input bindings from their parents
UE - Gameplay - Input - Apr 9, 2025Test content for this bug is in the /EnhancedInputTesting/UE_268605/EnhancedInput_UE268605 level in QAGame! When a widget blueprint is created with Enhanced Input bindings in the event graph, whe ...
Opening Editor preferences window while simulating and pressing Play/Stop causes memory leak
UE - Foundation - Core - EditorLoader - Feb 3, 2020An open but minimized Editor Preferences window causes a memory leak while simulating and repeatedly pressing Play/Stop. ...