Unreal Engine Issues
Unreal Engine Issues
AbilitySystemComponent::NotifyAbilityEnded Can Crash due to Callbacks Invalidation Specs
UE - Gameplay - Gameplay Ability System - Oct 11, 2023Pasting from the UDN: Unsafe code in AbilitySystem can lead to crash when granting an ability inside OnAbilityEnded Hello. We just ran into a crash. After investigation, it seems to be caused by ...
FIOSInputInterface::SendControllerEvents crash due to UIInterfaceOrientation call from game thread
UE - Platform - Mobile - Apr 29, 2020From [Link Removed], licensee reports We believe that querying the UIInterfaceOrientation via UIApplication on the game thread is the issue here. We have made changes to IOSInputInterface.cpp and I ...
CapsuleComponent Shape sometimes reverts to previous value after entering a new value
UE - Foundation - Core - Nov 28, 2014If you manually type in the value for Capsule Half Height, it will sometimes revert back to it's previous value upon hitting Enter. The CapsuleComponent's shape in the Blueprint's Viewport adjust to ...
Blueprint Cannot Give Niagara CPU Access To Skeletal Meshes Added From Blueprint
UE - Niagara - Apr 4, 2019When a user tries to add a skeletal mesh component to a blueprint with a niagara system to use the skeletal mesh with that niagara system, the niagara system will stop rendering because it does not ...
Perforce integration creates bad changelist
Tools - May 14, 2019Perforce integration creates bad changelist when deleting or renaming a file, then renaming another into its place ...
[CrashReport] UE4Editor_SlateRHIRenderer!FSlateRHIResourceManager::GetShaderResource() [slaterhiresourcemanager.cpp:525]
UE - Editor - UI Systems - Slate - Nov 2, 2017This is a trending crash coming out of the 4.18 release, and may be a regression. Users have not provided any descriptions of their actions when the crash occurred. Jiras for similar callstacks in ...
Crash occurs if the Recast Navmesh is set to Dynamic and the BehaviorTree runs a 'Does Path Exist' decorator
UE - AI - Jun 16, 2015Crash occurs if the Recast Navmesh is set to Dynamic and the BehaviorTree runs a 'Does Path Exist' decorator. Crashreporter info: [Link Removed] ...
Possible bug with GAOGlobalDistanceFieldCacheMostlyStaticSeparately
UE - Graphics Features - Jun 2, 2025The Global Distance Field can constantly update, even when the camera is stationary, in large World Partition maps. This bug requires a large amount of the World Partition map to be loaded to reprod ...
USDStage - USD Material Overrides not reading
UE - Editor - Content Pipeline - USD - May 31, 2022USD material overrides do not get applied properly to a USDStage prim inside UE. When a material override that is set to a parent prim of USD Material, the override is ignored. A usd material ...
Ragdoll replication on server side is not replicated correctly on client
UE - Networking - Dec 2, 2014Ragdoll replication on server side is not replicated correctly on client. The client will see the server players ragdoll dissappear and reappear at the 0,0,0 origin point. AnswerHub Posts: https: ...