ProcessPriority performance consideration with Generation 12 Intel CPUs

UE - Foundation - Cpp Tools - UnrealBuildTool - Oct 26, 2022

It has been noted that the default BelowNormal process priority set in UnrealBuildTool is not handled well with the Gen 12 Intel CPUs as processes are only scheduled on the E-Cores which causes degr ...

Crash occurs when selecting Reset this Property to Default Value in the Class Settings of a new Child Animation Blueprint

UE - Anim - Runtime - Anim Blueprints - Oct 26, 2022

This is a Regression. Tested in //UE5/Release-5.0 CL20979098 - "None" is not an option for the parent class and the "Reset this Property" is not initially there. Crash occurs when selecting Reset t ...

AnimNotifyState with the same class, but different content at the same time will only one be triggred

UE - Anim - Runtime - Oct 26, 2022

UDN Case : https://udn.unrealengine.com/s/question/0D54z00008G3EmwCAF/two-c-based-animnotifystate-with-the-same-class-but-different-content-at-the-same-time-will-only-one-be-triggred?fromCase=1 ...

UWorld::InternalGetNetMode uses DemoNetDriver, leading to unexpected NetMode being returned

UE - Networking - Oct 25, 2022

UWorld::InternalGetNetMode will use DemoNetDriver->GetNetMode() if there is a DemoNetDriver, resulting in NM_ListenServer being returned when recording a replay. This seems to have been originally a ...

[Alias] Reimport of a StaticMesh failed

UE - Editor - Content Pipeline - CAD - Oct 25, 2022

The user suggest to add the option "Only New Meshes" ...

Linked Anim Layer node can become stuck in a single state when attempting to change the Layer

UE - Anim - Runtime - Anim Blueprints - Oct 25, 2022

When swapping Layer settings between various Animation Layers on a Linked Anim Layer node, the node can become stuck in one state. The node will become stuck in the Linked Anim Layer state and canno ...

SignedArchiveReader may request wrong number of chunk blocks

UE - Foundation - Core - Oct 25, 2022

This problem is caused by an incorrect calculation of the number of chunks in the read request. Here is the workaround applied by the licensee : int64 FSignedArchiveReader::PrecacheChunks(TArray<F ...

Geometry Collection Cache Mode recording that has shattered on the ground shows that Collection Freeze when switched to Play and simulating again

UE - Simulation - Physics - Oct 24, 2022

Cache Mode: record seems to simulate fine, in Cache Mode: Play, the object does not simulate fracturing Repro Rate: 5/5 ...

Editor asserts when deleting a morph target from a skeletal mesh

UE - Editor - Content Pipeline - Asset Build - Oct 24, 2022