Procecdural Mesh Components without a material assigned crashes on conversion to Static Mesh

Rendering - Aug 6, 2019

This bug doesn't occur in 4.21. The issue is at line 157 in ProceduralMeshComponentDetails.cpp . When the procedural mesh has a material the crash doesn't occur. File location: Runtime/ProceduralMe ...

SetAnimRootMotionTranslationScale Is not exposed to Blueprints

Anim - Aug 5, 2019

The SetAnimRootMotionTranslationScale in Character.h is not callable by blueprints. ...

ToggleDebugCamera Console Command doesn't disable an enabled DebugCamera

Gameplay - Aug 5, 2019

The "DisableDebugCamera" node and the "ExecuteConsoleCommand" node with "ToggleDebugCamera" in the Command field do not disable an enabled Debug Camera. Found in 4.22.3 CL#7053642 Reproduced in 4.2 ...

SteamVR crash with DirectX 12

Rendering - RHI - Aug 5, 2019

SteamVR will crash with dx12 enabled. You may need to attempt to teleport or open the console for the crash to occur. Also confirmed in MAIN 4.24 CL 7713732 ...

Creating Online Session always fails in Launch mode when loading another map

Networking - Aug 5, 2019

Creating an Online Session and transitioning to another map does not work in a Launched Windows game. The transition event does fire but it just resets the players position on the Default map. This ...

The packaged build of a project that has a strong pointer initialized to nullptr immediately closes on launch

Core - Aug 2, 2019

When a strong pointer is set to null the packaged build of the game will immediately close. No crash logs were were made and no Saved folder was made (<Project Name>/Saved/Logs). An example project ...

Severe ghosting on animated objects when camera stops moving in sequences when using path tracer

Rendering - Ray Tracing - Aug 2, 2019

Pixels seem to stop updating in the path tracer when a camera stops moving in sequence. Old color values from objects that have moved seem to still affect pixels they should not.  ...

RSTP Stream does not appear to work with Media Streaming source assets

Media Framework - Aug 2, 2019

It appears that RSTP streams do not work in editor when used with a Stream Media Source asset. ...

Possessing and Unpossessing a Pawn when using NetCulling causes the Client to lock up

Networking - Aug 1, 2019

In this test bench, they are using a APawn with a custom replicated Movement Component rather than using a ACharacter and they are getting a different result that ends up in a permanent softlock of ...

Interpolators of Particle Dynamic Parameters Need "nointerpolation".

Rendering - Niagara - Aug 1, 2019

Regardless Niagara or Cascade, dynamic parameters for particles are passed to pixel shaders from vertex shaders via InterpolantsVSToPS. It can cause a precision error on some materials, for example ...