Materials for certain groups appear black in Path tracer when "Keep hierarchy" is used to import .skp files.

TM - Interoperability - Mar 3, 2025

Reported 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, 2025

Reported 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 ...

Using a Wait Delay node on Linux causes editor to immediately close without crashing

UE - Platform - Linux - Sep 14, 2015

If a call is made to the blueprint node Wait Delay the editor will immediately close during PIE when the call is made without the crash reporter appearing. The "Wait Delay" node only exists on Linu ...

Differences in Post Process FX between Minimized and Maximized Viewport

UE - Graphics Features - Apr 19, 2016

When 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, 2016

Per 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 ...

Android Back Button go to Oculus home when using Gear VR

UE - Platform - XR - Mar 7, 2016

This is regression from 4.10 functionality. When assigning the Android Back Button functionality in a GearVR project, the back button will now bring up the Oculus Home Screen asking if you would lik ...

Media Texture Not Displaying When Launched to Android Device

UE - Rendering - Architecture - Materials - Dec 17, 2015

UPDATE: 12/23/2015 This appears to be occurring on packaged projects for Win64 as well. ====================================================================== When attempting to launch a level t ...

SunTemple scene does not update properly on iPhone 6S

UE - Platform - Mobile - Jul 18, 2017

On the 6S, the SunTemple scene is almost unresponsive. As the player uses the thumbsticks, the lightmaps from the windows rotate to mach the player's movement; but they are the only thing. This doe ...

Compile error when Blueprint Interface returns a map type variable

UE - Gameplay - Blueprint - Feb 26, 2019

A Blueprint Interface function that returns a map type variable will fail compiling with various errors when called in another Blueprint. If the same function is setup in the Actor Blueprint instead ...

Crash When Building Lighting for a Level with Previously Purged Lightmaps

UE - Graphics Features - Feb 27, 2019

If you go into World settings, select Force No Precomputed Lighting, rebuild lighting to purge lightmaps, uncheck Force No Precomputed Lighting, save level, quit, reload project and try rebuilding l ...