Unreal Engine Issues
Unreal Engine Issues
Editor crashes when using decal material on Instanced Static Mesh with Raytracing
UE - Graphics Features - Lumen - Apr 8, 2021This issue can occur when setting the Decal Material to Instanced Static Mesh in a Raytracing enabled project. (If there is a cache, it will not crash.) The cause is that DefaultDeferredDecalMateria ...
Editor crashes when importing alembic asset
UE - Gameplay - Aug 28, 2016Editor crashes when importing Alembic material asset. The editor will crash once selecting the asset in Windows explorer, before the Import Options window appears. When testing this, we had an ave ...
nDisplay Crash in DisplayClusterDeviceBase.cpp
UE - Virtual Production - nDisplay - Aug 14, 2020The showdebug abilitysystem command crashes editor when the target is a child actor
UE - Gameplay - Dec 2, 2021An actor with an AbilitySystemComponent that is spawned by a ChildActorComponent will have a null AbilityActorInfo. This leads to a crash in the ASC when GetDebugTarget attempts to access AbilityAct ...
Editor crashes when re-opening a project that had previously successfully applied a Live Coding patch
UE - Foundation - Cpp Tools - Live Coding - Apr 9, 2019The Editor will crash while opening a project that had previously successfully had a Live Coding patch applied, and then was closed. The `LiveCodingConsole.exe` process continues to run after both t ...
[AI] Crash in UGameplayDebuggerLocalController::OnDebugDraw
UE - AI - Debugging - Apr 27, 2024UGameplayDebuggerLocalController::OnDebugDraw crashed with a dereferenced nullptr for CachedReplicator. ...
[AI] SmartObject with Precondition in a persistent collection crashes editor when exiting PIE
UE - AI - SmartObject - Sep 26, 2023Adding the Precondition to the SmartObject caused an assertion when it was part of a persistent collection. The precondition needs to be able to pass its Activate method to cause the assert. This b ...
Crash may occur if Actor is selected on the outliner and then discarded
UE - Editor - Workflow Systems - Jul 1, 2022Discarding Actor while it is selected on the outliner may cause a crash. This may be caused by operations from C++ not being listed in the UNDO list, which may refer to unreferenced objects during ...
Crash when adding a spawnable volume to a Level Sequence when Draw Brush Polys is enabled in the level editor
UE - Editor - Workflow Systems - May 3, 2024Crash when adding foliage instances to unloaded IFA
UE - World Creation - Worldbuilding Tools - Foliage - Aug 31, 2023Ran into a crash when trying to programmatically add foliage to a large WP level with some unloaded IFAs. ...