Unreal Engine Issues
Unreal Engine Issues
TMap does not serialize properly in specific circumstance when it contains a UObject property set to null by default
UE - Foundation - Core - Aug 8, 2018A TMap containing a struct with a UObject reference property (set to nullptr by default) does not serialize properly for an instance where the UObject reference is set on the instance, but the TMap ...
Exporting process stuck in "Estimated time" phase when uploading projects with Panorama Sets & Presentation after freshly booting TM
TM - Core - Dec 4, 2024Cloud Build: TWINMOTION CL app-2023.2.33001994-2024.1.37216540-2025.1.38508591-cloud-2024.12.02.095314 (DEV / STAG, CHROME) Issue: Exporting process stuck in "Estimated time" phase when uploading p ...
Assertion failed: ExportSettings == *ExistingExportSettings [File:D:\build\++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\Lightmass\Lightmass.cpp] [Line: 546]
UE - Graphics Features - Sep 12, 2023Generated from CrashReporter Logs can be obtained via Crash Reporter ...
On static mesh import correctly named materials in project aren't automatically applied
UE - Editor - Content Pipeline - Import and Export - Jul 16, 2019When importing a static mesh into a project with the appropriately named materials in it already they won't apply to the mesh automatically when setting Search Location to All Assets without being i ...
Editor crashes when using decal material on Instanced Static Mesh with Raytracing
UE - Graphics Features - Lumen - Apr 8, 2021This issue can occur when setting the Decal Material to Instanced Static Mesh in a Raytracing enabled project. (If there is a cache, it will not crash.) The cause is that DefaultDeferredDecalMateria ...
Advanced Vechicle Template throws warning about no default skeleton when opening the physics asset
Docs - Samples - Dec 3, 2014DESCRIPTION: If you try to open the physics asset for the Advanced Vehicle template will throw a warning that the physics asset has no default skeleton and that it will be replaced with the default ...
Rarely, unmodified Niagara will cause diffs and bloat the patch.
UE - Niagara - May 3, 2022Attached is a project that picks up Niagara from the content sample. The probability of reproduction is about 1/10. The simpler the project, the lower the reproduction probability. I am attaching ...
FBX export from UE4 with multiple materials the UV is corrupted
Tools - Apr 18, 2016When exporting a Static Mesh from within UE4 that has multiple materials, some of the material IDs will be condensed into a single ID which will mess up how the material assignment for that part of ...
Enabling Shader compilation via XGE for 4.18 Editor downloaded from Launcher doesn't work, prevents shaders from compiling at all, editor from loading in some cases
UE - Foundation - Build - Rocket (Installed Engine) - Nov 9, 2017If you enable Shader compilation via XGE by setting r.XGEShaderCompile = 1 in ConsoleVariables.ini in 4.18 Editor downloaded from Launcher, it prevents shaders from compiling at all, and as a result ...
HiResShot in Standalone Play Not Saving Screenshots
Tools - Dec 8, 2014the High resolution screenshot is not saved when using the command 'HiResShot' when playing via the Standalone option. You can use the command and it shows the link to the directory where the screen ...