Unreal Engine Issues
Unreal Engine Issues
Unable to use TWeakObjectPtrs for the optional Old value for a repnotify function
UE - Foundation - Cpp Tools - UnrealHeaderTool - Oct 8, 2018A user has reported that Unreal Header Tool fails to parse a rep notify function properly when the optional parameter for the Old value is populated with a TWeakObjectPointer. Example of errors:Sev ...
Implied Decal Blend Modes don't properly account for Material Attributes usage
UE - Graphics Features - Sep 28, 2021I've attached a project with the necessary materials that demonstrate this issue. I would expect that just because a Set Material Attributes node is inside a material graph it wouldn't affect the de ...
Particles Do Not Obey Lighting Channels
UE - Niagara - Apr 17, 2018Particle systems ignore lighting channels - no matter what channel a light is on (even if no channels are selected), it will affect lit particles. Changing lighting channels on the particle itself h ...
SplineMeshComponent's collision will start to distort the longer the Spline becomes
UE - Gameplay - Nov 30, 2016SplineMeshComponent's collision will start to distort the longer the Spline becomes This is a regession. It was working in 4.13.2-3172292 User Description: When drawing out a long spline mesh ( r ...
Using "Replace variable with..." does not mark a blueprint as needing compilation
UE - Gameplay - Blueprint - Jan 4, 2016Using "Replace variable with..." does not mark a blueprint as needing compilation. Reproduced in 4.9.2 binary, 4.10.1 binary, and Main 4.12 (CL 2813214). This is not a regression; the same bug appe ...
Sub Surface Shading Model has Strange Blotch Color Artifacts when Used with a Ambient Cubemap
UE - Graphics Features - Sep 23, 2019Sub surface shading model has strange blotch color artifacts when used with ambient cubemap. Since the subsurface profile shading model can't be used with ambient cubemap I wanted to use the regular ...
Edits to floating point properties do not propagate to blueprint object instances if old values have more than 6 decimals of precision
UE - Editor - Workflow Systems - Apr 28, 2023[Link Removed] JH 2023-04-28 01:12:36 UTC Editing any object's float/double property via an Editor details panel will be truncated if it has more than 6 decimals of precision. (e.g. if I type in 0.12 ...
Geometry in sublevel created with "Load Level Instance" ignores level transform
UE - LD & Modeling - Modeling Tools - BSP - Sep 26, 2017Geometry in sublevel created with "Load Level Instance" ignores level transform. Other objects, such as Static meshes are affected by the transform. This issue is not a regression. Versions tested: ...
UClass::SparseClassDataStruct null at editor-time for child blueprints until compile
UE - Framework - Blueprint - May 29, 2024Child blueprints of a blueprint of a native actor class with sparse data can have an incorrectly null SparseClassDataStruct value, and thus fail to initialzie their SparseClassData. This affects edi ...
Open Level Crash in Gear VR
UE - Platform - XR - Oct 5, 2016Projects using Open Level (blueprints) or ServerTravel (in C++) will crash the application once it's open on a device using Gear VR Mode. 10-05 18:01:46.451: A/art(19619): sart/runtime/check_jni.cc ...