Unreal Engine Issues
Unreal Engine Issues
Merge Actors (Simplify) is broken with Substrate Shader Models Node
UE - Graphics Features - Substrate - Sep 29, 2025Substrate Materials cannot be baked when Meshes are merged using the "Simplify" method. All textures except for the normal are reduced to a single black parameter. The normal texture produced does n ...
Instanced meshes do not accurately use volume light samples when lit in a statically lit scene
UE - Graphics Features - Aug 14, 2015When using instanced meshes in a Blueprint or in foliage tool the indirect lighting cache will not correctly light these meshes. I've include a sample project with map to demonstrate what the lice ...
Auto Convex collision generation doesn't work in some instances the accuracy setting
UE - Gameplay - Jun 18, 2015The new auto-convex collision generated (V-HACD) will not work properly with some meshes to generate accurate collision. Using a rounded single piece mesh the accuracy setting will not work at all ...
Adding a node or variable to a component referenced by another actor crashes editor
UE - Gameplay - Blueprint - Aug 3, 2015If compile is pressed after adding a variable or node to a blueprint component that has a variable referenced within another blueprint actor, the editor immediately crashes. Frequency: 1/1 Crashr ...
While renaming a variable in the Details panel, clicking another variable will rename it instead
UE - Gameplay - Blueprint - Feb 11, 2015While renaming a variable in the Details panel, clicking another variable will rename it instead. ...
Interface function has the incorrect pin type if referencing self
UE - Gameplay - Blueprint - Sep 1, 2015Interface function has the incorrect pin type if referencing self User Description: I have an interface that requires an array of its own interfaces as output. I have that array of interface as a ...
MaterialInterface is not exported and therefore it's functions are not accessible
UE - Graphics Features - Jun 9, 2015MaterialInterface which is a base class for other classes (such as UMaterialInstanceDynamic) is not being exported which causes compiler errors when a user attempts to access the functions of this c ...
Full screen mode when using a laptop with Optimus ignores the gama setting
UE - Graphics Features - Feb 15, 2016When using full-screen mode on a optimus laptop the gama that is set for the system appears to be ignored and uses the default setting, even if it has been adjusted in Windows display calibration se ...
Emitter Initial Location breaks when using Orbit module
UE - Graphics Features - May 30, 2017Emitter Initial Location (EIL)module will cause the emitter with the module to follow whatever other emitter is set. If the emitter being followed has an Orbit module, the first emitter does not fo ...
After loading a SubLevel from the PersistentLevel of WorldComposition, the offset of WorldComposition is applied when loading the SubLevel alone
UE - World Creation - Worldbuilding Tools - World Composition - Aug 30, 2018When loading a Sub Level from the Persistent Level of World Composition, the offset of WorldComposition is applied when loading the Sub Level by itself. The offset can be applied repeatedly when rel ...