Content browser folder names are allowed to use parentheses, which are disallowed by object paths

UE - Editor - Framework - Content Browser - Nov 10, 2021

The content browser compares folder names against INVALID_LONGPACKAGE_CHARACTERS, which allows parentheses. However, object paths compare against INVALID_OBJECTPATH_CHARACTERS, which disallow parent ...

Crash when adding Rectangle Lights to a game with multiple players while Raytracing is enabled

UE - Rendering - Nov 9, 2021

A user reported this issue to us through Salesforce. They initially said it crashed with both Spot Lights and Rectangle Lights, but I was only able to repro with Rectangle lights. Additionally, I di ...

Layer blending not detecting compilation errors correctly when linked to material functions

UE - Rendering - Materials/Shaders - Nov 9, 2021

This may be more of an error when detecting the input when layer blending is being used (as we've seen in other functions), rather than it necessarily being an error with the compilation of the stan ...

Subobject delimiter replacement in ResolveName can cause previously valid strings to exceed NAME_SIZE

UE - Foundation - Core - UObject - Nov 8, 2021

ResolveName will replace the subobject delimiter (colon) with two periods. This increases the length of the string, and can cause asserts due to the string exceeding NAME_SIZE even when the name was ...

Camera manager will not tick if the game is paused on begin play or possessed events

UE - Gameplay - Nov 4, 2021

This is an interesting bug because it is only happening on BeginPlay. I guess that there is some order of operations that the camera manager uses during creation that will stop if the game is paused ...

"Primitives with unbuilt interactions" not clearing after lighting scene rebuild

UE - Rendering - Oct 29, 2021

Regression No, according to affect version 4.26 and 4.27 [2021.10.29-17.01.06:085][830]Primitives with unbuilt interactions: 6[2021.10.29-17.01.06:085][830] Primitive FoliageInstancedStaticMeshComp ...

USkeletalMesh::SetSkeleton function is not a BlueprintSetter

UE - Editor - Framework - Asset Build - Oct 28, 2021

I have a fix ready for this in cl: 17967661 ...