Unreal Engine Issues
Unreal Engine Issues
Unloading a spawned Detour AI Controller using Level Streaming causes a crash
UE - AI - Oct 14, 2019In a Level Streaming setup, unloading a level that has spawned an AI Character with a Detour AI Controller causes a crash. This was reported and tested in 4.23 (CL-8386587). This was reproduced in ...
Crash enabling Async Scene and opening level in editor
UE - Gameplay - Jan 11, 2017This is a regression from 4.14.3 at CL 3251583 ...
Crash - console command stat none
Tools - Oct 7, 2020Engine Crash when Running a Screenshot Functional Test
UE - Automation Test - Apr 12, 2023Running a Screenshot Functional test, is causing an engine crash. By attaching a debugger to it, AScreenshotFunctionalTestBase::PrepareForScreenshot() is reached and GEngine->GameViewport is null, ...
Access Violation crash deleting a Widget Blueprint with an unsaved Animation track - FSequencer::Tick()
UE - Anim - Sequencer - Jun 19, 2017Encountered an Access Violation crash while deleting an Widget Blueprint with an unsaved Animation Track. The callstack references FSequencer::Tick(). I was not able to reproduce this issue in UE4/ ...
Crash in Blueprint when clicking on Component variable name that remains after Component was deleted
UE - Gameplay - Blueprint - Jul 25, 2017This is a common crash in 4.16 and trending in the 4.17 previews. It can be reproduced by clicking on the name of a variable that remains listed in a Blueprint after the associated component has al ...
Crash opening project with Hair assets
UE - Simulation - Physics - Jun 30, 2020Crash occurs when the user opens the linked project, which has Hair assets. [Link Removed] ...
Crash related to Vertex Painting - MeshPaint!CastChecked<AActor,UObject>()
Tools - May 23, 2016This crash was reported on the UDN. Upon further investigation it has been experienced by a handful of different users throughout 4.11 and 4.12. JIRA logged for tracking despite unknown repro steps ...
check(!bPostTickComponentUpdate) fails triggered by UNiagaraComponent::CreateRenderState_Concurrent() and StaticMeshCompilingManager::FinishCompilation()
UE - Niagara - Rendering - Jul 23, 2024Reported alongside [Link Removed] Context: Some ActorComponents can schedule end-of-frame work which UWorld executes later in the frame in UWorld::SendAllEndOfFrameUpdates(). By-design it appears t ...
Crash When opening context menu in sequencer
UE - Anim - Sequencer - Mar 14, 2018Altering a key in an event track that contains a struck with a static mesh variable will cause the editor to crash. ...