Unreal Engine Issues
Unreal Engine Issues
Building in VS fails if Application.ico is missing
UE - Foundation - Core - Mar 25, 2015When building a project in VS, the build process will fail if Application.ico is missing from the /Build/Windows/ folder. User reported seeing this when checking in/checking out a project on differ ...
Collison and Simple Collision Mip Level Crash
UE - Graphics Tools - Terrain - Landscape - Mar 21, 2023Niagara Fluids Plugin creates a memory reference of any saved level by only being active, before being actually used.
UE - Niagara - Aug 21, 2024While Niagara Fluids Plugin is active it creates a memory reference of any saved level regardless of being actually used. Simply enabling the plugin shows a memory reference while deleting the level ...
Crash when displaying lumencards on map with many objects
UE - Graphics Features - Lumen - Aug 1, 2025There is a thread conflict between FRDGBuilder execution in Background Worker and LumenVisualizer's LumenCard add/delete process. When lumen cards are displayed in a scene with many objects, a crash ...
DiffuseIndirect_Lumen_3 parameter missing and causing crash with Screen Space reflections and Lumen Async Compute
UE - Graphics Features - Lumen - May 3, 2025When the Reflection Method is set to Screen Space and Lumen reflections async compute is enabled Unreal will crash because DiffuseIndirect_Lumen_3 parameter missing, due to how DenoiserOutputs are o ...
Memory Leak in Actor Component Blueprints
UE - Gameplay - Blueprint - Dec 2, 2015Slow memory leak occurs after opening Actor Component blueprints. ...
Manipulating Morph Target on Master Component distorts Slave Components
OLD - Anim - Apr 1, 2016Manipulating Morph Targets on Master Component distorts Slave Components. It makes no difference if the slave component has the morph target being manipulated in the master See attached image and ...
USplineComponent::FindLocationClosestToWorldLocation does not function correctly with non-uniform scale
UE - Framework - Components - Jul 19, 2022Licensee reports incorrect results with FindLocationClosestToWorldLocation when used with non-uniformly scaled spline components. ...
Split-screen players not rendering
UE - Graphics Features - Feb 11, 2015When using the Create Player node to setup split-screen multiplayer, only the last player created will show properly. All other players experience render issues for their character and environment. ...
Character Blueprint Cannot Execute Montage to Play at a Negative Play Rate
OLD - Anim - Aug 3, 2016While an Animation Montage can be played at a negative play rate in Persona, the user cannot use the Character Blueprint to execute this action. ...