Unreal Engine Issues
Unreal Engine Issues
Certain UPROPERTY values are not updated during auto-recompile
UE - Gameplay - Blueprint - Aug 4, 2016Sometimes manual recompile is required to make a blueprint actually recompile data-only changes, but not always. If the last manual compile was with default values, then changes are not updated. If ...
Editor crashes if an interface array variable is reset in the Detail's Pane
UE - Gameplay - Blueprint - Apr 27, 2016The editor will crash if an array of interfaces is reset using the "reset values" button (yellow arrow) in the Detail's Pane of the editor. Frequency: 4/4 Crashreporter: N/A Regression? (No), is ...
~FStaticMesh() can crash with race condition
UE - Graphics Features - Mar 21, 2017UDN user reported frequent crashes in FStaticMesh::~FStaticMesh() on DrawListLinks[i]->Remove(false); Crash went away after adding critical sections to FStaticMesh::LinkDrawList(), FStaticMesh::Unl ...
Opening a widget blueprint on Linux causes editor to crash
UE - Platform - Linux - Aug 25, 2016The editor crashes when attempting to open a widget blueprint. ...
Project breaks if Online Subsystem plugin is disabled
UE - Foundation - Core - Apr 25, 2017Disabling Online Subsystem prevents the project from loading. On Windows, this produces an error shown in attached screenshot. On Linux, this causes a crash with the attached callstack on project ...
Trace Hit.Z varies strangely based on trace start/end Z
OLD - Anim - May 8, 2017The Z value of a trace hit will vary based on the Z value of the start/end points of the trace. The larger the start/end Z range, the larger the variance of Hit.Z values. ...
Lighting channels not working as expected when enabling Ray Tracing Shadow
UE - Graphics Features - Lumen - Oct 13, 2020Non-Ray Tracing Shadows are only cast from lights on meshes assigned to the same Lighting Channel. When enabling Ray Tracing Shadows this is not the case. Lights will still cast Ray Tracing Shadows ...
Alembic Import with empty first frame will cause the editor to crash
UE - Gameplay - Aug 10, 2016The editor will crash when importing an Alembic file with an empty first frame. ...
Crash when calling UPoseableMeshComponent::CopyPoseFromSkeletalComponent() from Actor's Tick while unregistering
UE - Anim - Runtime - Apr 26, 2023Under certain conditions, it appears that the function UPoseableMeshComponent::CopyPoseFromSkeletalComponent may crash because the BoneSpaceTransforms obtained from the source component are empty, p ...
Infrequent WaitingTask->IsCompleted crash related to FNiagaraSubmixListener closing QAGame -game
UE - Audio - Submixes - Jan 5, 2022Infrequent WaitingTask->IsCompleted crash related to FNiagaraSubmixListener closing QAGame -game Unsure if related to [Link Removed] it was spawned from a group of oodle crashes and this is distinc ...