Unreal Engine Issues
Unreal Engine Issues
Crash on iOS9 when using Apple's CFNetwork library
UE - Platform - Mobile - Dec 6, 2016Many clients have hit a crash due to an Apple library using operator delete on a memory block that was not allocated with operator new. This happens with the following callstack on iOS9 in UE4.13 o ...
World Position Offset Only Affecting the Z-Axis when applied as a Material to a Landscape
UE - LD & Modeling - Terrain - Landscape - Jul 6, 2016When utilizing World Position Offset on Landscapes, the VertexNormalWS only pushes vertices in the vertical direction. Even if you are to sculpt an aggressive slope on the landscape, the vertices ar ...
Nanite mesh socketed to a Skeletal Mesh is not affected by the 'Owner No See' or 'Only Owner See'
UE - Graphics Features - Nanite - Jun 22, 2022Nanite mesh socketed to a Skeletal Mesh is not affected by the 'Owner No See' or 'Only Owner See'. Compared this against a regular Static Mesh. ...
Scale box affects all children in a parent container widget when setting User Specified Scale
UE - Editor - UI Systems - Jul 5, 2018When a scale box is the the first child of a container widget, setting the user specified scale to 0 will affect all other widgets in the same parent container. ...
Using a Macro to access a variable from another Actor causes a crash in Standalone
UE - Gameplay - Blueprint - Jun 8, 2015Using a Macro to access a variable from another Actor causes a crash in Standalone. This does not seem to affect any other preview in editor, nor packaged games. Reproduced in 4.7.6, 4.8 Preview 4, ...
Xcode 8 Beta Toolchain Breaks InfiltratorDemo on AMD On 10.11.6
UE - Platform - Apple - Jul 27, 2016InfiltratorDemo rendering is entirely broken on 10.11.6 using AMD GPUs when the shaders are compiled to byte code using the Xcode 8 Beta 2 toolchain. This does not appear to occur with the Xcode 7.3 ...
LIVE: Editor crashes when attempting to use erosion tool on landscape (4.6 preview)
UE - LD & Modeling - Terrain - Landscape - Nov 17, 2014The editor crashes while attempting to use the erosion tool on a landscape in editor. Frequency: 2/2 Callstack: <unknown module>! KERNELBASE!RaiseException() <unknown module>! UE4Editor_Core!FO ...
Unreal Lightmass does not build by default when building Solution from Promoted Github 4.12
UE - Foundation - Cpp Tools - UnrealBuildTool - Jan 19, 2016When building the Promoted 4.12 Solution from Github as of the 4AM commit, the Unreal Lightmass project does not build by default. This results in the inability to build lighting until Unreal Light ...
TMaps with instanced objects: modifying instanced object data in child affects parent
UE - Gameplay - Blueprint - Jul 25, 2023Given a TMap where the value type is an instanced object: when a child blueprint is saved with modifications to the TMap, and then additional TMap are added to the parent blueprint and the child blu ...
Shadow Maps performance issue with 5.4 in comparison towards 5.3
UE - Graphics Features - Shadows - Nov 20, 2024Shadow depths performance for non-VSM in certain scenes, notably those with rect lights and meshes that are set to movable, went from ~2ms to ~18ms going from UE 5.3 to UE 5.4. Setting the movable a ...