App crashes on launch when packaged for Vulkan with Scalable 2D/3D

UE - Platform - Mobile - Nov 4, 2016

No Vulkan SDK was installed Crashed on a Nexus 6P ...

Linux Vulkan editor crashes OOM on older graphics cards

UE - Graphics Features - Oct 19, 2018

Vulkan editor is very crashy on older cards due to memory pressure. I have to switch to OpenGL to work on the unrelated bugs. I'm attaching the details of the particular failure I had (see VulkanMe ...

GamePad input commands for multiplayer all send to player 1

UE - Gameplay - Input - Nov 20, 2014

When setup for multiplayer, all players are able to move around and control the camera with the analog sticks but button presses of all controllers only affect player 1. ...

Animations imported with Skeletal Mesh are not marked as dirty and don't get saved

UE - Editor - Content Pipeline - Import and Export - Jun 21, 2016

Animations imported with Skeletal Mesh are not marked as dirty and don't get saved. They disappear when the editor is restarted. This does not occur in 4.11 or 4.13. ...

Adding elements to an array variable within a struct minimizes defaults category for the array.

UE - Gameplay - Blueprint - Jun 23, 2016

Adding elements to an array variable within a struct minimizes defaults category for the array. Regression (no) issue (does) occur in 4.11.2 ...

Screen Aligned UVs render incorrectly in Stereoscopic

UE - Platform - XR - Mar 28, 2016

Textures with ScreenAlignedUvs do not render correctly in stereoscopic (on the Oculus Rift). Does not reproduce using the DK2. Found on 4.11 Binary CL-2923993 ...

Exponential Height Fog is not working

UE - Graphics Features - Dec 28, 2015

Exponential Height Fog has no effect on the level. Adjusting the fog density has no effect either. Tested in 4.11 stream CL-2811790 ...

Skeletal meshes are not simulating physics

UE - Simulation - Physics - Feb 6, 2017

Skeletal meshes do not simulate physics when playing in viewport. They are not affected by gravity, nor do they ragdoll. This doesn't occur in UE4/Main. This occurs with Immediate Mode Physics of ...

[CrashReport] UE4Editor-MetalRHI.dylib!FMetalVertexBuffer::FMetalVertexBuffer()

UE - Graphics Features - Jul 25, 2017

This is a common Mac crash that has affected users since at least 4.14. Unfortunately users have not provided any descriptions of their actions when the crash occurred. ...

Data Tables can no longer import numeric enum values

Tools - Nov 1, 2017

Some changes to UEnumProperty::ImportText_Internal prevent this importing the stringified number (which is a float) as an enum value. This affects the JSON importer, and maybe the CSV one too. ...