GPUCrash - exiting due to D3D device being lost. (Error: 0x887A0006 - 'HUNG')

Rendering - Oct 26, 2017

This Jira is for the continuation of the "D3D HUNG" crashes which originally spiked in the UE 4.14 release. Some fixes were implemented in 4.16.2 and 4.17.0 which made some improvement to the frequ ...

Code project cannot be successfully set to use CLion

Core - Feb 2, 2018

Setting a code project to use CLion as the source code accessor does not appear to work successfully. ...

Extreme hitching when using profile command (stat startfile) + other stat commands

Core - Apr 19, 2018

Running the "stat startfile" command in a 4.19 project causes constant editor hitching. Running the same command in a 4.18 project does not produce any hitching by comparison. ...

Renaming or Moving a Map with a Landscape in it results in an error and fails to save map

Tools - Landscape - Jul 25, 2018

When renaming or moving a map with a landscape in it this will fail and an error prompt will appear. ...

GameplayTask classes that have a BeginSpawningActor function never call the Activate function

Gameplay - AI - Oct 3, 2018

A class that inherits from GameplayTask which also has a BeginSpawningActor function will not have its Activate function fired properly. Removing this function causes it to fire properly. Regressio ...

Google VR causes app to close on splash screen for shipping builds on iOS

Virtual Reality - Feb 23, 2017

[NickW] This is because the app needs permissions for the camera in the plist when deploying on iOS. ------------------ Google VR appears to crash on a shipping build when installing onto an iOS d ...

[CrashReport] UE4Editor_D3D11RHI!FD3D11DynamicRHI::RHICreateUniformBuffer() [d3d11uniformbuffer.cpp:218]

Rendering - Jun 12, 2018

No user comments in crash group 208 check(Layout.ResourceOffsets.Num() == NumResources); 209 210 for (int32 i = 0; i < NumResources; ++i) 211 { 212 ...

Importing a Landscape Layer with World Composition Enabled Causes Memory Leak

Tools - Landscape - Sep 18, 2018

When importing layer information to a landscape the engine will freeze and consume all available memory. Unable to test in 4.19 due to provided project being made in 4.20. I have attached a log from ...

Memory Leak In PageAllocator When Packaged

Tools - Landscape - Aug 29, 2018

There is a Memory leak in PageAllocator when packaged. The leak can be stopped if "Landscape.Static" is used in console. Unable to test 4.19 since the provided project was 4.20, but Issue is reporte ...

Meshes simulating physics cannot roll smoothly across multiple connected meshes

Physics - Jul 30, 2018

A user has reported a physics regression from 4.19 to 4.20 where attempting to roll a static mesh down a slope made of multiple meshes no longer results in a smooth roll. The static mesh will skip a ...