Debug information is sometimes missing when compiling with cl-clang

UE - Foundation - Cpp Tools - UnrealBuildTool - Aug 24, 2023

Via UDN: As has been discussed previously here and in CL 20055361, debug information is sometimes missing when compiling with Clang. We've pinpointed this to debug information not being emitted fo ...

Details Panel Bug - Multiple external objects of same type share expansion state

UE - Editor - Workflow Systems - Oct 5, 2023

This is because expansion state is saved per class, and we are displaying multiple objects of the same class at the same type. The UniqueID we add when adding these objects via 'AddExternalObject' ...

Component Picker search does not behave as expected

UE - Editor - Workflow Systems - Oct 26, 2023

Search results in component pickers do not show up unless they match both the name of the actor and the component, this is because FActorHierarchy::CreateWorldChildren ends up calling Mode->CreateIt ...

Tilemap using Masked Lit Sprite Material not Rendering in Standalone mode

UE - Gameplay - Paper2D - Jan 26, 2016

When using a Tilemap with a Masked Lit Sprite Material, the tilemap will not render while in Standalone. In the test project, the Paper2D Blueprint character was switched to Masked Lit Sprite Materi ...

UnrealVS "Refresh Projects" fails for projects

UE - Foundation - Cpp Tools - UnrealVS - Nov 10, 2015

Using the Refresh Projects button in the UnrealVS toolbar will fail for projects because it can't find the "GenerateProjectFiles.bat" file for the specified project. Licensee reporting the issue me ...

FIntVector has some code that refers to it being two dimensonal

UE - Gameplay - Mar 10, 2016

There is code in the FIntVector class (IntVector.h) that seems to be copied from the FIntRect class which is a problem since FIntRect is two dimensonal while FIntVector is three dimensional. The one ...

Material Parameters aren't unique if the Material Function has been duplicated

UE - Graphics Features - Jul 31, 2017

Material Parameters aren't unique if the Material Functions has been duplicated, When the parameters are enabled in a Material Instance, one will be disabled on Material Instance close. This is a r ...

Foliage meshes do not appear in high res screenshots after certain amount

UE - World Creation - Worldbuilding Tools - Foliage - Aug 24, 2017

When using the Engine's High Res Screenshot tool, there is a limit on the amount of foliage that can be present before the meshes stop appearing. This number is around 1500 meshes, though I was not ...

Editor cannot handle blueprint structure using an Actor Map variable

UE - Gameplay - Blueprint - Aug 28, 2017

If a blueprint structure contains a map variable with Actor Class Reference as the key, populating the map with a custom blueprint (ActorSet) and adding a variable of the structure to any other blue ...

Metal crash after painting 300 Foliage meshes onto a surface

UE - Graphics Features - Oct 4, 2017

Encountered a Metal crash when painting Foliage on Mac. I'm unable to reproduce anything similar on Windows. This crash can occur if the user drags a Static Mesh into the Foliage Panel or uses an e ...