Unreal Engine Issues
Unreal Engine Issues
Editor crash when calling function that contains a local Map varaible
UE - Gameplay - Blueprint - Mar 20, 2017When a function contains a local map variable, calling the function causes the editor to crash. This only occurs is the map is defined at the function level, no crash occurs if the map is declared ...
Action RPG- ARPG CharacterBase::GetHealth() Null Crash
Docs - Samples - May 16, 2019In Action RPG Sample, NPC Blueprints "NPC_Goblin_Level_01,02.03" cannot be Duplicated. Crash results lead to ARPGCharacterBase.Cpp Get Health function. float ARPGCharacterBase::GetHealth() const ...
Linux: Assertion at splash screen when trying to open UE4Editor
UE - Platform - Linux - Mar 21, 2017I ran into this while looking to verify [Link Removed] at CL 3355923. I logged the issue I was verifying the fix for last night and have not updated anything locally, so the "OpenGL 4.3 not supporte ...
New VR-Basic level triggers Metal validation layer assertion
UE - Platform - Apple - Mar 16, 2020This was discovered externally and reported on UDN here: https://udn.unrealengine.com/questions/563268/mac-editor-crash-when-disable-ambient-occlusion.html ...
ODSC - Launching a newly created project via UnrealFrontend fails to load some materials and crashes
UE - Rendering - Architecture - Materials - Sep 6, 2021The same repro steps on 4.26.2 will launch the project successfully. Packaging a project once to create complete ShaderMaps will work around the issue. ...
Landscape Visibility Tool crashes editor
UE - LD & Modeling - Terrain - Landscape - Feb 20, 2015Editor crashes when landscape visibility tool is used on landscape. Frequency: 2/2 Crash Reporter: [Link Removed] ...
Crash when loading Anim BP after undoing and saving "Use Shared Rule" in state machine
UE - Anim - Runtime - Jul 19, 2022Reported by UDN [Link Removed] From Slack discussion: It seems that undo-ing the transaction in UAnimStateTransitionNode::UseSharedRules, leaves the outer graph (UAnimationStateMachineGraph) wit ...
FLiveCodingModule::StartLiveCoding() unsafe access of FModuleManager::Get().OnModulesChanged()
UE - Foundation - Cpp Tools - Live Coding - Dec 19, 2023A user has reported a failing ensure in FMRSWRecursiveAccessDetector::AcquireWriteAccess(), a race condition that has a small chance of happening when launching the editor. FLiveCodingModule::Start ...
Opening widget blueprint causes editor to crash
UE - Editor - UI Systems - Oct 17, 2014Branch Build Label UE4-Main Promoted-CL- 2323471 DESCRIPTION: User crashes when opening a Widget blueprint. Unable to reproduce internally. *EDIT* Repro provided by User ...
Attempting to connect to Perforce source control causes a crash
Tools - Oct 16, 2015Selecting Perforce from the list of source control options will cause the editor to crash. Crash Reporter [Link Removed] May also be the same as: [Link Removed] REGRESSION? Yes. Issue did not occ ...