Unreal Engine Issues
Unreal Engine Issues
Array of Instanced Objects on Component Does Not Propagate to Children Correctly
UE - Foundation - Core - UObject - Jun 6, 2017Attempting to add an entry to an array of instanced objects is not correctly displaying that entry in a child class based on that actor. It is expected that the inherited component in the child acto ...
SKP Import - Materials for certain groups appear black in Path Tracer when using Keep Hierarchy
TM - Interoperability - Mar 3, 2025Reported by a client in SF [Link Removed] When importing SKP files using the Keep Hierarchy collapse mode, some imported objects in Groups inside SketchUp will appear black in Path Tracer. Appears ...
Instanced Properties remain after compile
UE - Gameplay - Blueprint Editor - Jan 25, 2018Our team has been using property instances, and have run into several problems. We were able to reproduce one of the problems, and I was hoping to have your team look at it. General scenario. We ha ...
Mouse Not Functioning Correctly with Multiple Displays Connected to Mac
UE - Platform - Apple - Apr 24, 2015When using mutliple monitors connected to a Mac the mouse behavior does not function well. Attempting to navigate and drag windows to and from individual displays proves difficult. The user reporti ...
The AABBTree spatial acceleration structure goes off-sync when physics substepping is enabled in a "low" framerate environment.
UE - Simulation - Physics - Mar 15, 2024When you enable the physics substepping, if you run the console command p.Chaos.Solver.DebugDrawSpatialAccelerationStructure 1, you can see how does not follow the physical object. The user that rep ...
Clear Coat looks incorrect in the Preview when Energy Conservation on Material is enabled for non Substrate rendering
UE - Rendering Architecture - Materials - Apr 11, 2024Enabling Energy Conservation on Material makes Clear Coat Material look weird in Preview. It looks fine in the Level Editor, but not in any "Preview" type viewport (Material Editor, Asset Thumbnails ...
Foliage lightmaps for LODs does not look correct
UE - World Creation - Worldbuilding Tools - Foliage - Jun 21, 2016When using the foliage tool with any mesh that has a LOD the lightmap generates artifacts for the instance. The base LOD will have correct looking lightmaps, however when pulling back and seeing the ...
Split pins of Function inputs do not correctly update if variable type is changed
UE - Gameplay - Blueprint - Aug 30, 2017When using the inputs of a function, splitting a variable and then changing its variable type does not properly update the node as expected. This occurs with any variable type that can be split. Sav ...
[CrashReport] UE4Editor_Engine!UMaterialExpression::GetOutputType() [materialexpressions.cpp:859]
UE - Rendering Architecture - Materials - Nov 21, 2017This is an infrequent crash in the 4.18 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context 849 uint32 UMaterialExpression::GetOutputT ...
Stationary light shadow are occluded for additional players in split-screen mode
UE - Graphics Features - Jun 17, 2015When using split screen multiplayer the second or more players that are added for split screen will have their characters shadows occluded when the bounds are not within view of player 1. Setting ...