Unreal Engine Issues
Unreal Engine Issues
Creating SplineMeshComponents along Spline causes crash
Tools - Aug 22, 2018Attempting to procedurally create SplineMeshComponents along the spline of a SplineComponent via a derived SplineComponent class's constructor causes the project to crash. It runs into an ensure mes ...
AIController can't properly unpossess character
UE - AI - Nov 5, 2018There seems to be a bug with the Possess\Unpossess events. Because if you change the last node in "PossessCharacter", which is created in PlayerController(called "PC"), to Unpossess the AI still con ...
Rect Light Source Creates Black Artifacts When Overlapping a Mesh While Light Shaft Bloom Is Enabled
UE - Graphics Features - Nov 9, 2018A black line will appear If a Rect Light is overlapping a mesh while a Directional Light has light shaft bloom enabled. This line will originate from where the edge of the source is overlapping the ...
Smart Nav Links created via Load Level Instance are broken, but Simple Nav Links are fine
UE - AI - May 20, 2019Maps brought in via Load Level Instance that contain Nav Link Proxys configured to use the Smart Link instead of the Simple Link end up creating a link at the center of the world instead of their ac ...
Pawn's role is incorrect in BeginPlay on client if a multicast RPC is called in BeginPlay on server
UE - Networking - Jun 6, 2022It seems as though calling a multicast RPC during BeginPlay on the server will cause the new actor to finish spawning on the client before applying any initial replicated data, such as the actor's R ...
Light function does not work with volumetric fog when not compatible with light atlas
UE - Graphics Features - Mar 28, 2025Light functions do not work as intended with volumetric fog when using clamped mask textures which are not compatible with the light function atlas. In light functions materials, when using any UV ...
Materials for certain groups appear black in Path tracer when Keep Hierarchy is used to import .skp files
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 ...
BSOD when launching Twinmotion on NVIDIA 50-series GPUs with 576.02 Drivers
TM - Rendering - Apr 22, 2025Reported from multiple users. NVIDIA RTX 50-series GPU users are reporting BSODs when attempting to launch Twinmotion with the latest drivers installed. The crashes occur on the 576.02 driver versi ...
Differences in Post Process FX between Minimized and Maximized Viewport
UE - Graphics Features - Apr 19, 2016When scaling the viewport window using the Maximize/Minimize viewport option, the post processing effects applied to the screen do not scale properly. This issue seemed trivial at first, as the use ...
Landscape UI Elements are not visible
UE - LD & Modeling - Terrain - Landscape - Oct 4, 2016Per conversation between Gareth and Mike, it was determined the Landscape tool is in Game Mode by default. Within the Landscape Tool, all UI elements are disabled by default. This has been observed ...