Instanced RepNotify variable doesn't update on client if altered in level

UE - Networking - Jul 8, 2019

An instance editable Rep Notify variable will not update on Rep Notify if an instance of if is edited in a scene. A demonstration project can be found here: [Link Removed] Found in 4.22 CL#7053642 ...

Each changing collision response increases FPhysXTask count

UE - Simulation - Physics - Jul 8, 2019

calling SetCollisionResponseToChannel or something similar, FPhysXTask will ever increase . Finally, it causes serious frame rate drop. That count can be reset by calling RecreatePhysicsState. ...

Crash when using VR Mode with Extra Viewports and a Camera Actor

UE - Editor - Workflow Systems - Jul 6, 2019

From User: "Normally UE4 has an "Eject" button which is great for live-debugging your app, because you can see everything that's happening in your world, and see the World Outliner in realtime whil ...

Unnativized BP function fails to return a valid reference to a component when the calling BP is nativized

UE - Gameplay - Jul 5, 2019

The nativized spawner receives an invalid reference from the non nativized actor and fails silently meaning the variable doesn't get set. Additional info: This issue happens when using a pure and n ...

Unable to create derived classes of UPostProcessComponent

UE - Graphics Features - Jul 5, 2019

Using the Super functions for OnRegister, OnUnregister, Serialize when defining their functionality in a derived class of UPostProcessComponent causes a linker error. Tested in 4.21.2 (CL - 4753647 ...

Set Skeletal Mesh does not replicate or multicast to Clients

UE - Networking - Jul 5, 2019

The Set Skeletal Mesh function does not replicate or multicast to other Clients. In Setup A (Level Blueprint) only the Sever Character is changed on either the Client or Server. In Setup B (ThirdPer ...

UHT fails to parse non-inlined UFUNCTION with RESTRICT keyword in parameter list

UE - Foundation - Cpp Tools - UnrealHeaderTool - Jul 2, 2019

When you have a non-inlined ufunction, UHT fails to parse the restrict keyword in its parameter list. Note: The following compiles (notice that the only change is the use of the FORCEINLINE keywo ...

Inclusive Nativized Blueprints slower than Non Nativized Blueprints in packaged project

UE - Gameplay - Jul 1, 2019

When nativizing blueprints the packaged build of the project runs slower than a non-nativized version of the packaged project. Found in 4.22 CL#7053642 Reproduced in 4.21 CL#4753647, 4.24Main CL#7 ...

Crash when trying to open a widget after upgrading project

UE - Foundation - Core - Jul 1, 2019

A user is experiencing a crash after upgrading their project from 4.21 to 4.22. This crash did not occur in the 4.21 version of the engine. [Link Removed] ...

The default scene root of an blueprint actor is not removed after adding a static mesh component via C++ until after restarting the project

UE - Gameplay - Jun 27, 2019

The default scene root of an blueprint actor is not removed after adding a static mesh component via C++ until after restarting the project (or reloading the blueprint asset) Found in 4.22 CL#70536 ...