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. ...

Breakpoint triggered in Visual Studio after running "{,,UE4Editor-Core}::PrintScriptCallstack()" command

UE - Gameplay - Blueprint - Jan 10, 2018

Running the command {,,UE4Editor-Core}::PrintScriptCallstack() in the Immediate Window in Visual Studio while debugging is paused in Visual Studio will result in a breakpoint being hit when the ...

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. ...

Oculus CheckIfPointWithinPlayArea function returns incorrect results

UE - Platform - XR - Jan 10, 2018

Oculus CheckIfPointWithinPlayArea function returns incorrect results, always reporting true whether or not the hand is inside the play area or not.  The distance and closest point also seem incorrec ...

Landscape cooking takes as much as 6 times longer in 4.18

UE - LD & Modeling - Terrain - Landscape - Jan 10, 2018

Some developers are finding that the change to add a bunch of shader types to FLandscapeMaterialResource::GetExcludedShaderTypes() in 4.18.2 increased their project cooking times on PC or console by ...

Project fails to build for iOS from Windows when Generate .uedebugsymbols is enabled

UE - Platform - Mobile - Jan 9, 2018

This does not occur in 4.18.3 at CL 3823254UATHelper: Packaging (iOS): ERROR: System.IO.DirectoryNotFoundException: Could not find a part of the path 'D:\Epic Games\UE_4.19\Engine\Binaries\ThirdPa ...

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 ...

When deleting a Struct Variable and undoing it, it removes all rows from related Datatables

UE - Gameplay - Jan 8, 2018

When undoing variables in a Structure it clears the referenced Datatable of all its rows. However deleting and just adding a new variable works fine. Repeated undos have the chance to add back the ...

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 ...