Unreal Engine Issues
Unreal Engine Issues
Editor Preference settings get wrongly saved within project instead of editor
Tools - Jul 23, 2018Various settings within the Editor Preferences window get saved within the project instead of the Editor. If someone were to heavily modify their Editor Preferences they would have to set it up agai ...
[CrashReport] UE4Editor_Engine!USceneComponent::DestroyComponent() [scenecomponent.cpp:847]
UE - Gameplay - Components - Dec 1, 2017[Edit]: This should no longer be a crash as of 4.19.2 - we should only get ensure() reports with this callstack. ===== This is a common crash coming out of 4.18. Users have not provided any descript ...
Crash when attempting to deform a landscape when Paint Layer has not been used - Assertion failed: !TargetProxy->HasLayersContent() || !InCanUseEditingWeightmap || EditingLayerGUID.IsValid() [LandscapeEdit.cpp Line: 5252]
UE - LD & Modeling - Terrain - Landscape - Sep 9, 2020The editor crashes when attempting to draw a weight blended texture to the landscape if it hasnt been used on that landscape yet. This crash can be completely avoided if the stone texture is painted ...
[CrashReport] UE4Editor_Engine!FStaticMeshVertexBuffer::BindLightMapVertexBuffer() [staticmeshvertexbuffer.cpp:495]
UE - Graphics Features - Mar 20, 2018User comment from crash group:reimporting fbx 491 void FStaticMeshVertexBuffer::BindLightMapVertexBuffer(const FVertexFactory* VertexFactory, FStaticMeshDataType& Data, int LightMapCoordinate ...
Inline edit conditions don't support undo
Tools - Jul 3, 2018The Editor does not support undo after making changes Inline edit properties. Working in 4.18.3 Broken in 4.19.2 Tested in 4.18.3(3832480), 4.19.2(CL - 4033788), 4.20(CL - 4181430) , 4.21(C ...
[AI] Area Class to Replace does not work on SplineNavModifierComponent
UE - AI - Navigation - Jun 16, 2025The SplineNavModifierComponent does not have the same behavior as regular nav modifier components where the modifier can specify that it only replaces a given NavArea class. Setting the area class t ...
FsplineComponentVisualizer inconsistent selection/deselection behavior in the Level Editor
UE - Editor - Workflow Systems - Aug 2, 2023It seems to be more intuitive if the component is selected on the Details Panel when activating a ComponentVisualizer in the Level Editor viewport. This is what happens in the Blueprint Editor’s Com ...
Multiplying CompleCollision by inverse scale does not create a collision
UE - Framework - Components - Aug 2, 2022If multiplying a mesh with ComplexCollision by inverse scale, the geometry may not be created on the mesh. This may depend on the assets of the mesh. In the sample example, the navmesh is not create ...
Wires to PCG nodes with translated properties are cut
UE - World Creation - Procedural Tools - PCG Graph - Apr 19, 2024Some PCG nodes have translated properties, which will cause wires to be cut. This is why things PCG biome sample maps do not work correctly in CJK language settings. The workaround is to set the lan ...
Grabbing a Destructible Mesh Child blueprint with a Phsyics Handle crashes the editor
UE - Simulation - Physics - Jun 20, 2016Grabbing a Destructible Mesh Child blueprint with a Phsyics Handle crashes the editor during PIE. NOTE: This issue occurs whether or not simulate physics is active on the destructible mesh compone ...