FRootMotionMovementParams::Accumulate can trigger an exception in debug-editor when using a cached pose

UE - Anim - Rigging - Jan 11, 2018

When you are using the editor compiled as debug-editor, combining the use of a pose cache, RootMotion Everything setting, could trigger an exception. ...

[CrashReport] UE4Editor_Engine!FHierarchicalStaticMeshSceneProxy::GetDynamicMeshElements() hierarchicalinstancedstaticmesh.cpp:1431

UE - Graphics Features - Jan 10, 2018

Currently no user comments on crashreporter Similar issue crashing in landscape file: [Link Removed] Logged this issue separately but wanted to provide that information. ...

Android devices are not opening video source files

UE - Platform - Mobile - Jan 10, 2018

There is an issue when packaging and launching onto an andorid device in version 4.18 where Android devices are not opening video source files, playing the level on the device shows only a black scr ...

Foliage does not appear in capture target when using "Always Persist Rendering State" when the foliage count is over 1.5k

UE - World Creation - Worldbuilding Tools - Foliage - Jan 10, 2018

There is an issue occurring where Foliage does not appear in capture target when using "Always Persist Rendering State" when the foliage count is over 1.5k. The issue does not occur when the foliage ...

Blueprint nativization fail with UE4.18

UE - Gameplay - Blueprint - Jan 10, 2018

Switching the Blueprint Nativization mode to inclusive along with un-checking Event Driven Loader will result in an error when trying to package the project. ...

[CrashReport] Assertion failed: FPlatformOpenGLDevice::FPlatformOpenGLDevice

UE - Rendering Architecture - RHI - Jan 9, 2018

Comments from users:tried with -opengl4tried to start with -force-opengl instead of -opengltried to run in opengl modetried to run in opengl mode due to DX11 feature level 10.0 error. (DirectX is in ...

"Find Collision UV" does not work with "Get Hit result under cursor"

UE - Simulation - Physics - Jan 8, 2018

The Hit result from "get hit result under cursor" does not appear to be working with "find collision UV" Using "Line Trace by Channel" hit result works as intended. ...

Camera rotation stops at game border when using Begin play node

Tools - Jan 8, 2018

There is an issue where Camera rotation stops at game window border when using Begin play node with the mouse. This issue does not happen if you don't use the begin play node with the Set show mouse ...

NetDriver time becomes unusable after long running sessions

UE - Networking - Jan 8, 2018

This issue has been around for a long time (potentially UE3). UNetDriver::Time is a float, which is updated by accumulating Delta Time during ticks. This means the longer a game runs, and the highe ...

Can't delete a folder from the World Outliner

Tools - Jan 7, 2018

This issue is in the operation of World Outliner. If it attach another actor to the actor, even if you deleted folder that existed before, the folder will exist after restarting the editor. If it mo ...