Unreal Engine Issues
Unreal Engine Issues
Planar Reflections on Mobile short view distance for non single plane faces
UE - Platform - Mobile - Jul 7, 2016Planar Reflections on mobile work well with single plane assets but not with anything with multiple sides, like a box. Tested in: 4.12.4 CL-3028348 4.13 Dev-Editor CL-3038075 ...
Compilation manager inhibit construction script to get other actor reference on the level when running construction script right after actor compile.
UE - Gameplay - Blueprint - Aug 9, 2017Construction script execution following blueprint compile gets invalid actor reference if Blueprint compilation manager is enabled. For example, in the attached project, Right after blueprint compi ...
OnHit not firing when capsule collider passes onto very close and same height mesh
UE - Simulation - Physics - Sep 10, 2019When a capsule collider passes from the top of one piece of geometry to another that is very close the OnHit event doesn't fire. I have attached a project that demonstrates the issue in 4.23. A vid ...
FVoiceSerializeHelper doesn't add references to AudioComponent instances
UE - Networking - Apr 28, 2015"FVoiceSerializeHelper doesn't add references to AudioComponent instances" ShooterGame crashes when following the repro steps provided by the licensee, listed below and on the UDN post. Crash image ...
Odd behavior when moving a large number of assets
UE - Editor - Content Pipeline - Content Browser - May 18, 2015User is experiencing his PC running out of memory when he does large move/copy operations in the content browser. There are a few issues with this process. The first is that attempting to drag any ...
“Receives Decals” is not respected on Procedural Mesh Component
UE - Graphics Features - Oct 14, 2022(Enduring Games) I investigated it and found that the following primitive data flag test in BasePassPixelShader.usf fails: (GetPrimitiveData(MaterialParameters).Flags & PRIMITIVE_SCENE_DATA_FLAG_DE ...
Can't set "r.Shaders.Optimize" to false in UE5.4
UE - Rendering - Architecture - Shaders - Jun 7, 2024The CVar "r.Shaders.Optimize" cannot be set to false from DefaultEngine.ini in the section "[ShaderCompiler]" as its help text describes. Also tested on UE5-Main, CL: 34200103 ...
The collision of objects moving at high speeds seems to move in front of the object
UE - Simulation - Physics - Mar 9, 2015The collision of objects moving at high speeds seems to move in front of the object. The faster the object is moving, the further the collision will be from the mesh. AnswerHub report: https://an ...
Lack of multi-bounce when using software traced lumen radiosity
UE - Graphics Features - Lumen - Apr 4, 2025Certain Lumen Hardware Ray Tracing CVars, when disabled in isolation, will not fall back to tracing the Global Distance Field, because the Global Distance Field is still disabled. The function "Lum ...
Setting linear dampening during runtime via the event graph does not work for separated chunks
UE - Simulation - Physics - Destruction - Dec 18, 2014DESCRIPTION: When using a DM in blueprints and setting the linear dampening in the event graph the DM will honor the linear dampening but the chunks as they break off will not. Setting the mesh to ...