Virtual Heightfield Mesh crash using released Vertex Factory

UE - Rendering Architecture - Jul 25, 2023

When using VirtualHeightfieldMesh we see intermittent crashes in FDepthPassMeshProcessor::TryAddMeshBatch(). This can happen when FVirtualTextureProducerCollection::CallPendingCallbacks() is called ...

Guid reference warnings when using the Take Recorde

UE - Virtual Production - Tools - Take Recorder - May 14, 2024

When we record a Take from a level actor, a warning about referencing the same Guid inside LazyObjectPtr.h appears. The functionality of the LevelSequence works as expeced, but when the initial tak ...

Camera Rotation Not Working With Mouse if Mouse Cursor is Shown

Tools - Apr 11, 2016

When the mouse cursor is shown, and you press eject in the viewport, you can no longer rotate the camera while holding right click and moving the mouse. If you hide the mouse cursor using the Show ...

Set Actor Scale 3D Not Functioning as Expected

UE - Gameplay - Blueprint - Jan 12, 2016

Using Set Actor Scale 3D in the Construction Script is not functioning as expected. If you set the scale to 1,1,1, you are still able to freely scale an instance of the object in the scene. However, ...

Cannot PIE; Data Table Still Being Edited

Tools - Dec 22, 2015

After making some changes to a Data Table, attempting to PIE fails and returns this error message: Cannot Play In Editor When Performing Edit MemberVar_1 operation. This occurs after closing and sav ...

Search Field within Blueprint Graphs lose focus after Right-Clicking on Mac and Linux

UE - Platform - Apple - Apr 3, 2016

The search field within blueprints loses focus after right-clicking in an empty space in the graphs. I checked to make sure this was not a universal issue, and it is indeed platform specific with t ...

Console Command `Stat SceneRendering` is showing incorrect number of Lights in scene

UE - Graphics Features - Jan 8, 2016

When using the Console Command for Stat SceneRendering the Counter section for "Lights in scene" is not accurately listing the number of lights. In a 4.10 project an empty new level is showing 16 ...

Exceptions can no longer be enabled for ProjectEditor targets

UE - Foundation - Cpp Tools - Jul 16, 2018

It is no longer possible to enable C++ exceptions for the ProjectEditor target in code projects that use the binary Engine. Some fixes that were made for 4.19 now correctly show an error message if ...

Properties of placed-in-map actor instances may not replicate if their default has been edited

UE - Networking - Mar 26, 2019

If the default value of a replicated property is edited on an instance of a placed-in-map actor, then on the server is value is changed back to the default, a client who joins in progress after this ...

[AI] FInstancedStruct is not dupilicated properly if values are different from an Actor's defaults

UE - AI - Jan 24, 2024

A licensee reports that the values of an FInstancedStruct do not get properly duplicated if they differ from the default values of the Actor or TArray to which they belong. Possible short-term wo ...