Unreal Engine Issues

Player input on the Client while Ejected during PIE will show on the Server (Editor) viewport and not on the Client window

Player input on the Client while Ejected during PIE will show on the Server (Editor) viewport and not on the Client window. Reproduced in 4.7.6 binary, 4.8.2 binary and Main (//depot/UE4/Promotable ...

Using the CVar `Shot` causes artifacts in the screenshot with GearVR

When using the CVar for `Shot` the produced image saved in the screenshots folder of the project on the device will has artifacts that are not the image taken. This happens when using a Gear VR Proj ...

Generate Project Files is not automatically run after Switch Unreal Engine Version on Mac

When converting a project to a different version of the engine, the GenerateProjectFiles.command process is not ran as it would be on Windows with GenerateProjectFiles.bat. This can cause issues, es ...

UAnimNotifyState NotifyEnd / NotifyBegin called when setting GlobalAnimRateScale to 0 / non-zero respectivey

The issue seems to have a few parts. First, active events don't persist between frames. Instead, a new active list is created each frame and diffed against the previous frame. Added events have Beg ...

Alembic Geometry Cache files does not honor the flag for Receive Decals when using DBufferDecals

DBuffer Decals have no effect when setting the flag for Receives Decals for an Alembic Geometry Cache actor. Alembic imports for Static Mesh and Skeletal Mesh are unaffected and work as intended. ...

Mesh reduction crash with asset imported using FBX Scene Importer

The editor will crash when using Mesh Reduction on an asset imported using the FBX Scene Import options. This same asset will not crash the editor if it has been imported using the normal Import opt ...

Inconsistent Spectator Camera Behavior When Run Dedicated Server is Enabled

Spectator cameras don't seem to be set to the correct transform when the ChangeState/ClientGoToState functions are called when using a dedicated server. After testing on a listen server, it appear ...

Virtual joysticks is not properly working when running multiple clients in PIE

When running multiple clients in PIE, It looks like first created viewport client handles every input event. I tried to narrow down the causes and found that it's because SlateApplication knows jus ...

CSM has artifacts if shadow distance less than 2000

OCIO: orthographic viewport perspectives disable color transform

Switching through a non-perspective view disables the OCIO color transformation until perspective is re-selected. (There is also a related Slate-Editor issue where the visible viewport label doesn't ...