Unreal Engine Issues
Unreal Engine Issues
Geometry collection marked as nanite has no fallback in cooked build when nanite is disabled
UE - Rendering Architecture - Dec 11, 2023When geometry collection is set as nanite, there is no non-nanite render data cooked. This means that there is no fallback if the cooked build uses r.nanite 0. This used to work with some code worka ...
BulkData Async loading remains in memory
UE - Foundation - Core - Oct 26, 2016Gil's new loading path may already walk away from this issue. But here's some thing I tested locally if we want to fix this. A simple way to fix is to simply add BulkDataAsync.Deallocate(); ResetA ...
Local binary build of 4.22.1 fails when only Visual Studio 2019 is installed
UE - Foundation - Cpp Tools - Apr 30, 2019Attempting to create a local binary build of 4.22 using Visual Studio 2019 (with no other versions of Visual Studio installed) currently fails with several warnings and errors, including the followi ...
Custom Output node added to a Material Editor Crashes Editor
UE - Graphics Features - Jun 16, 2015Adding a Custom Output node to a Material Graph crashes the editor. Also Reproduced in Main Promotable-CL-2581018 [Link Removed] ...
Crash when DFAO is disabled and a lower scalability is used while Distance Field Shadowing is enabled.
UE - Graphics Features - Feb 2, 2016When enabling Distance Fields for a project and adjusting the cvars to disable DFAO and set a lower Detail Mode will result in a crash. Using the console commands outlined in the steps will work. ...
VC Runtime not in UnrealLightmass temp directory; causing lightmass build errors
UE - Foundation - Cpp Tools - UnrealBuildTool - Oct 14, 2015A Redistribute file for VS 2015 is needed to build lightmass, but this is not currently included with the engine. If a user does not have VS 2015 installed, lightmass will fail with this error: Un ...
Loading instanced static mesh causes memory leak in packaged game
UE - World Creation - Worldbuilding Tools - Foliage - Mar 3, 2021The leaking variable is UInstancedStaticMeshComponent::InstanceDataBuffers. The memory block is passed to InitPerInstanceRenderData() via InstanceDataBuffers.Release(). But the function doesn't mana ...
GPU Crash may occur when using Nanite Tesselation on landscape with several shadow casting local lights
UE - Graphics Features - Nanite - May 5, 2025The GPU may time out in NaniteSplit when drawing VSM shadows for Nanite Tessellated landscape with in a scene with several local shadowed point lights. The issue doesn't reproduce in 5.6, likely to ...
Android: Mali Txxx GPUs Encounter Stretching Geometry When Running with Support GPU Scene Enabled
UE - Platform - Mobile - Nov 27, 2019When attempting to run SunTemple with r.Mobile.SupportGPUScene enabled on some Mali GPUs, the project renders with what looks like pieces of the geometry stretching across the level and bending out ...
Enum Element Names Reset on Project Upgrade
UE - Gameplay - Feb 22, 2017Upgrading a copy of a project from 4.14 to 4.15 appears to be resetting the names of enum elements on switch on enum nodes. Opening the enum, saving it, and then restarting the project seems to res ...