Unreal Engine Issues
Unreal Engine Issues
BuildPlugin command cannot build plugins with platform extensions
UE - Foundation - Cpp Tools - Automation Tool - Jun 17, 2020It seems like the BuildPlugin command is not copying all the dependencies in the HostProject. Here are the errors reported by a customer: DynamicCompilation.RequiresCompilation: Compiling D:\Per ...
Children of editor-only actors do not maintain correct transforms when placed inside level instances for PIE and cooked builds
UE - World Creation - Worldbuilding Tools - Level Instances - Oct 20, 2025We have found an issue where children of editor-only actors get wrong transforms in PIE and cooked builds when placed inside level instances. This affects both engine version 5.5 and 5.6. The issue ...
Unnecessary files in Perforce Depot
Several unnecessary files seem to have found their way into the Perforce depot and need to be cleaned up. Affected files:Engine/Documentation/Source/Engine/Matinee/HowTo/MHT_3/Images/MHT#_Drag_In_C ...
Foliage experiences odd culling when world origin is changed
UE - Graphics Features - Sep 13, 2017There is an odd issue occurring when the world origin is changed, changing the world origin causes the foliage to cull in unexpectred ways. The issue can be solved by using the console command "r.Al ...
[CrashReport] UE4Editor_Foliage!AInstancedFoliageActor::PreEditUndo() [instancedfoliage.cpp:2296]
UE - World Creation - Worldbuilding Tools - Foliage - Dec 1, 2017This is a common 4.18 crash. Users have not provided any description of their actions when the crash occurred. Source Context 2286 void AInstancedFoliageActor::PreEditUndo() 2287 { ...
Buffer Visualization Modes Are Inaccurate
UE - Graphics Features - Apr 19, 2018In 4.18, Buffer Visualization Modes appear very similar to their representation in Buffer Overview. In 4.19 and Main (CL 4008322) the results are very blown out. Similar issue reported in [Link Remo ...
Rhino Identical sublayer names get numbers appended to corresponding Actors
UE - Editor - Content Pipeline - Datasmith - Importer - Oct 15, 2018In Rhino, it is possible to have a layer structure in which different parent layers have identical sublayer names. This is common in situations where you have multiple design options, each as a sepa ...
ApplyLimits AnimGraph Node has incorrect functionality
UE - Anim - Rigging - Nov 8, 2018In AnimNode_ApplyLimits.cpp the inputs for the ConstrainAngularRange function are going to the wrong rotator values. The XYZ of the node's input vec3 is being stored in YPR of the clamped rotator, w ...
When welding a procedural mesh component to a non-physics simulated static mesh that overlap they collide continuously
UE - Simulation - Physics - Jul 18, 2019When attaching a Procedural Mesh Component with a copied static mesh to a static mesh component the two meshes collide and "push" each other (go flying on play). Weld is to be used for simulated ph ...
Wake/Sleep events are not properly handled with Welding
UE - Simulation - Physics - Nov 25, 2019Wake/Sleep events are not generated for components set to generate wake events after having a component not set to generate wake events welded to them. Wake/Sleep events are also not dispatched for ...