Unreal Engine Issues
Unreal Engine Issues
HLOD generation does not respect Custom Primitive Data
UE - World Creation - Worldbuilding Tools - HLOD - May 7, 2020HLOD material baking doesn't take into account any custom primitive data set on primitives that contribute to the bake. This was raised in: https://udn.unrealengine.com/questions/574875/proxy-lod- ...
Material previews in the content browser display the default material checkerboard
UE - Rendering Architecture - Materials - Nov 16, 2023Occasionally material and material functions previews in the content browser are displayed with the default material checkerboard, perhaps due to shaders not being compiled. UDN users are also expe ...
In Packaged builds, Chaos Cache Manager can't animate Geometry Collections with Nanite Enabled if Cache Mode is set to Static Pose
UE - Simulation - Physics - Destruction - Feb 27, 2025In Packaged builds, Chaos Cache Manager (CCM) can't animate Geometry Collections (GC) with Nanite Enabled if Cache Mode is set to Static Pose. The licensee tried to animate a CCM using Sequencer onl ...
SkyLight makes level entire green on Android devices
UE - Platform - Mobile - Aug 10, 2016https://udn.unrealengine.com/questions/305453/skylight-makes-our-level-entire-green.html Licensee was seeing this only on this device: SM-G906S Android 5.0.1 Adding glFlush call in CaptureSceneToS ...
Light in Volumetric Fog offset in VR with Instanced Stereo and Forward Shading enabled
UE - Platform - XR - May 10, 2018Light inside Volumetric Fog is offset in the right eye when viewing in VR with Forward Shading and Instanced Stereo Enabled If just Forward Shading or Instanced Stereo is enabled, this does not occ ...
Landscape on Mobile is broken
UE - LD & Modeling - Terrain - Landscape - May 8, 2018UDN: https://udn.unrealengine.com/questions/431532/landscape%E5%9C%A8%E6%89%8B%E6%9C%BA%E5%B9%B3%E5%8F%B0%E6%98%BE%E7%A4%BA%E9%94%99%E8%AF%AF.html ...
[Feature Request] Subclassing UAnimNotifyState_TimedParticleEffect
OLD - Anim - Jan 23, 2019"have had to modify UAnimNotifyState_TimedParticleEffect in order to subclass it. I added 'ENGINE_API' and removed 'MinimalAPI'. I also needed to move 'ValidateParameters' from 'private' to 'protect ...
Event Dispatcher complains when input is struct array
UE - Gameplay - Blueprint Editor - Sep 12, 2019Result: Dispatcher node complains "No value will be returned by reference" [Image Removed] Expected: No user errors here. I did more test and the array of struct works as expected. Node shouldn' ...
Android Random Startup Crashing
UE - Platform - Mobile - Sep 9, 2020Licensees are reporting random crashes at startup, with randomly different messages, but it seems that all have a "low-address null pointer dereference". The licensee believes that the phone someti ...
Nanite displacement on landscapes not rendering on 5700XT
UE - Graphics Features - Nanite - Mar 27, 2024This only happens on a 5700XT, tested this on the 7900XT and the issue did not occur Initially reported on the Preview 1 forums: https://forums.unrealengine.com/t/unreal-engine-5-4-preview/1763516 ...