When the Transform of InstancedStaticMesh is updated, the Random Seed value of PerInstanceRandom is updated.

UE - Graphics Features - Oct 18, 2017

When updating Transform of InstancedStaticMesh by UpdateInstanceTransform, PerInstanceRandom used in Material is updated. With 4.16 does not update the RandomSeed value. ...

Crash caused by character referencing a reparented AnimBP

OLD - Anim - Oct 18, 2017

Placing a character that reference to a reparented AnimBP(created as a child of thirdperson, then reparented to AnimInstance) crashes editor after reopening the project. If you already had that charac ...

CreateWidget node keeps reference to created widget on output pin

UE - Gameplay - Blueprint - Oct 17, 2017

There was an issue in 4.16 (fixed in CL# 3437205) in which blueprint output pins would hold on to object references until the blueprint was destroyed. It appears that an additional fix may need to b ...

Flickering in Material Editor Preview when Absolute World Position node used

UE - Graphics Features - Oct 17, 2017

Creating a material with "Absolute World Position" node plugged into the "World Position Offset" input of the base Material node results in flickering in the preview window of the material editor. ...

VisibleAnywhere specifier doesn't prevent components from being edited in property windows

UE - Gameplay - Blueprint - Oct 17, 2017

Using the VisibleAnywhere specifier in a UPROPERTY declaration does not prevent a Component's properties from being edited in property windows. This conflicts with the description of this specifier ...

Crash exiting play in VR with -DX12

UE - Platform - XR - Oct 17, 2017

Crash when exiting play in vr when the editor has been launched with -DX12 This is not a regression (at least from 4.17.2), as in 4.17 the editor would crash simply when attempting to play in VR. ...

Build fails when packaging a specific map that is not using an exclusively nativized blueprint

UE - Gameplay - Blueprint - Oct 17, 2017

REGRESSION: Yes, in 4.17, the following warning occurs instead:UATHelper: Packaging (Windows (64-bit)): Project.GetBlueprintPluginPathArgument: WARNING: Failed to find generated plugin for Blueprint ...

Media Player freezes project in shipping build of game

Media Framework - Oct 17, 2017

When using the Media Player freezes project in a shipping build of the game, the game will freeze and the only way to quit will be to forcefully close the program. This issue is a regression. Versi ...

Move To Location or Actor Not Working if Location is Outside of Navmesh

UE - AI - Oct 17, 2017

Move To Location or Actor will always fail if the target location is outside of the Navmesh, even if Use Pathfinding is disabled. Found in 4.18 P4 CL# 3685441. Reproduced in 4.17.2 CL# 3658906 & 4. ...

Unable to build a local installed build of the Engine with only VS 2017

UE - Foundation - Core - Oct 17, 2017

I was unable to reproduce this locally, but a licensee reported having trouble creating a local installed build of the Engine with only Visual Studio 2017 installed. The licensee reported that the S ...