D3D11 error when opening a level after version change

UE - Graphics Features - Sep 23, 2015

After converting from 4.7.6 to 4.9.1 specific maps won't open and will crash the editor with a D3D11 error. This has been reported by multiple users but has not been reproduced internally. CrashRe ...

Grouping of multi-part Skeletal Mesh LODs causes only one part to import

Tools - Mar 11, 2016

When setting up Skeletal Mesh LODs, groups within an LOD Group in Maya are now accepted on import as of 4.12. However, it only brings in one mesh from the group. See attached image and fbx ...

Projects using a class that inherits from SceneCapture2D may crash on launch on iOS devices

UE - Platform - Mobile - Jan 4, 2016

If a project uses a class that inherits from SceneCapture2D and sets the render target via code, the project will crash on launch on an iOS device. The project runs normally on PC and Android. Proj ...

If an ensure() fails within an automated test, the test can still show a positive result.

UE - Automation Test - Aug 4, 2015

If an ensure() fails within an automated test, the test can still show a successful result. ...

Painted Vertex Colors not Passing Color when used with Emissive for Static Lighting Setting

UE - Graphics Features - May 24, 2016

When painting Vertex Colors on a mesh, and enabling the 'Emissive for Static Lighting' option, the painted colors are not passed to surfaces receiving the emissive static lighting. The regular emis ...

Metal crash after multiple level loads

UE - Platform - Mobile - Aug 18, 2015

User has reported that they get a crash after loading levels multiple times. This crash occurs when setting a Uniform buffer. ...

Delta applied twice when moving parent and grouped child actors

UE - Gameplay - Apr 8, 2016

When some grouped actors are childed to another actor, and both the group and the parent are selected in the world outliner, movement delta is applied twice to the grouped children. Code for a poten ...

Certain console commands/variables do not show their description text in the console window

UE - Foundation - Core - Jan 25, 2016

Console variables such as "t.maxFPS", "CauseHitches", "t.unsteadFPS", and help "help" (these were all tested, there may be more untested with the same behavior) have description text in code howeve ...

Window No Longer Captures Mouse After Closing Console

UE - Gameplay - Apr 29, 2016

When PIE, (Standalone) after bringing up the console, typing a console command and closing console, the standalone window no longer captures mouse. Instead the user must select the game window with ...

Unexpected Results with Get Random Reachable Point in Radius

UE - AI - May 5, 2016

When using Get Random Reachable Point in Radius and spawning instanced static meshes on those points, it returns a similar pattern almost every time with an L-shape in the center along with a dense ...