Tessellation appears to cause textures to appear incorrectly in the right eye of the vive

UE - Platform - XR - May 3, 2016

Tessellation appears to cause textures to appear incorrectly in the right eye of the vive ...

Attempting to change a spotlight in a child component referenced by a parent blueprint from movable to stationary and then running PIE crashes editor

UE - Gameplay - Components - May 3, 2016

Changing the mobility of a light component within a child component that of a parent blueprint and then entering PIE without compiling crashes the editor. Frequency: 3/3 Crashreporter: N/A Regres ...

Setting the r.ScreenPercentageTranslucency Variable below 100 causes Texture Swimming

UE - Graphics Features - May 3, 2016

When setting the 'r.SeparateTranslucencyScreenPercentage' variable to any value other than 100, UV world space textures begin to swim. In the example project attached, I created a simple translucent ...

Client lag/hitch detection can cause server to tick character faster than expected

UE - Gameplay - Player Movement - May 3, 2016

If client takes a long time to send a move to the server, the server erroneously ticks it for a large time without updating the client's timestamp, causing the server to move the client further than ...

Mouse Not Being Locked to Viewport in PIE

Tools - May 3, 2016

The mouse cursor is not being locked to the viewport during PIE in versions 4.11 and up. This is inconsistent with the behavior that was seen in 4.10 because the mouse was locked to the viewport du ...

Changing BlueprintCallable function's code results in Warning in blueprint that should be considered an Error

UE - Gameplay - Blueprint - May 3, 2016

A user reported an issue where, if a BlueprintCallable function's parameters are edited, a blueprint using a BlueprintCallable function will give warnings instead of an error for a problem after the ...

Static mesh component reports relative transform as world transform when Physics is enabled

UE - Gameplay - May 3, 2016

If a static mesh component has Simulate Physics enabled, GetRelativeTransform() returns the value of world transform. ...

Material Previews Reflection skybox are broken in 4.12

UE - Graphics Features - May 3, 2016

Materials are rendering now in the preview pane with artifacts caused by the change in the reflection skybox. This can clearly be seen in 4.12 and later by enabling the reflections view in the previ ...

Attached Project Crashes When Moving Child Actor Components in Blueprints

UE - Gameplay - Blueprint - May 3, 2016

The editor crashes when moving a child actor component in the blueprint viewport. This has not been reproduced in a clean project, and only seems to be occurring in the user project where they have ...

Attached Project Crashes While Opening After Conversion From 4.10 to 4.11

UE - Foundation - Core - May 3, 2016

The attached project is now crashing after being upgraded from 4.10.4 to 4.11.2. This crash also occurs when attempting to open a copy of the project in 4.12 Preview 1. After further investigation ...