Selecting a Packed Level Actor Blueprint Asset in Viewport does not select all packed assets

UE - World Creation - Worldbuilding Tools - Level Instances - Nov 16, 2022

The Packed Level Actor behavior has changed since 5.0.3, exhibiting the behavior described in the Result. I was able to reproduce this 4/4 times on Windows. When testing on 5.0.3, I confirmed that t ...

ScreenPosition material node outputs upside down ViewportUV when launching on android

UE - Graphics Features - Aug 28, 2018

ScreenPosition UV upside down on mobile. From User: "I believe the editor mobile preview provides "correct" results, while the mobile device produces upside down results. I ran into this issue w ...

Direct Capsule Shadows with Point Lights also project shadow on opposite side and direction

UE - Graphics Features - Dec 14, 2016

When using a Direct Capsule Shadows on a skeletal mesh with a Stationary Point light, depending on the point lights placement, light source radius, and nearby surfaces will cast the shadow on the op ...

When welding a procedural mesh component to a non-physics simulated static mesh that overlap they collide continuously

UE - Simulation - Physics - Jul 18, 2019

When 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 ...

[CrashReport] UE4Editor_Landscape!FLandscapeSplinesSceneProxy::GetDynamicMeshElements() [landscapesplines.cpp:159]

UE - LD & Modeling - Terrain - Landscape - Nov 17, 2017

This is an infrequent crash in 4.18. Users have not provided any descriptions of their actions when the crash occurred. Source Context 147 for (int32 ViewIndex = 0; ViewIndex < Views.Num( ...

LIVE: Setting sg.EffectsQuality between values will reset Destructible meshes if they have fractured

UE - Simulation - Physics - Destruction - Nov 14, 2014

DESCRIPTION: Using the command line sg.EffectsQuality and setting a value will reset a destructible mesh if it has already been fractured. AH Post: https://answers.unrealengine.com/questions/12850 ...

Painted Vertex colors are not retained when using "Convert Selection to Blueprint Class" in Child Actor mode

UE - Gameplay - Blueprint - Aug 25, 2020

From the User Submission: I spent some time poking through the FComponentInstanceDataCache code and noticed that there is no component instance data saved/applied for'native' component types, so si ...

Shader Compiler Crashes in Remote Build

UE - Graphics Features - Nov 11, 2019

Output log when crashing UATHelper: Packaging (iOS): LogCook: Display: Max memory allowance for cook 16384mb min free memory 0mb UATHelper: Packaging (iOS): LogCook: Display: Mobile HDR setting 1 ...

Actors unrelated to the changelist being validated cause errors

UE - World Creation - Worldbuilding Tools - World Partition - Nov 22, 2023

When validating a changelist, unrelated errors to the changelist can appear. Here's an example of running the validation on a cl named "temp cl" which just contains a single actor "Cylinder". The A ...

Control Rig: crashes when compiling after rearranging input pins in an array in Example Rig Unit

OLD - Anim - Aug 20, 2019

The crash doesn't occur every time, but it will happen within 3 swap and compiles in my experience. I got multiple different callstacks when I cause the crash using the reproduction steps (they are ...