Unreal Engine Issues

Deferring Blueprint CDO construction at load time is leading to some data loss.

Various licensees are reporting data loss on load due to the change that was made for [Link Removed] in which we now defer Blueprint CDO construction on load until the finalization phase. This issu ...

Muting the top most track row is muting all track rows

The workflow above is generally used to pull out key poses from a mocap performance. It works on 5.0. It can be simplified for QC into this:add some animation keys to your rigged character in Sequ ...

Unable to copy tracks from UMG animation to another animation

In UE5.0 it was possible to paste Tracks from one Animation to another, but from UE5.1 this fails with the message "Can't paste section. No selected tracks to paste sections onto". The attached pro ...

Global Distance Field Precision Issues Far From Origin

[Enduring] Appears to be in the visualization rendering of the distance field, distance field shadows were unaffected. There was one instance where the bug did not replicate as expected. This was wh ...

LiDAR plugin crashing with VR Instanced Stereo enabled

When enabling LiDAR plugin with VR Instanced Stereo enabled it causes a crash. Alternate repro: From Any project Enable Instanced Stereo in project settings Enable LiDAR Point Cloud Support Restar ...

Surface Cache Cards not generating correctly for Packed Level Actors

Crash occurs after setting Small Font to a Font then launching in Stand Alone as the Client

This is not a regression. Tested in //UE5/Release-5.0 CL20979098 Crash occurs after setting Small Font to a Font in the Project Setting then launching in Stand Alone as the Client. ...

ETcpMessagingVersion should be bumped because of ANY_PACKAGE changes to MessageBus

UdpMessageTransport version was bumped due to the change to MessageContext.  However, TcpMessageTransport did not have the corresponding bump in version.  From UDN: [Link Removed] ...

TickComponent and PostPhysicsTick in SkeletalMeshComponent can cause simultaneous read/write access

When a SkeletalMeshComponent is restarted by calling in order of   SetSimulatePhysics and SetComponentTickEnabled, the TickComponent and EndPhysicsTick are executed simultaneously. As a result, the ...

Crash occurs after right clicking a Modify Curve node in an Animation Template Blueprint

This is not a regression. Tested in //UE5/Release-5.0 CL20979098. The editor crashes when right clicking a Modify Curve node in an Anim Graph of a Animation Template Blueprint. ...