Unreal Engine Issues

Crash when interacting with an Actor containing an Instanced Static Mesh that is in a Locked level

This is not a regression. Tested in //UE5/Release-5.1 CL23901901 Editor crashes with an assertion after interaction with an Instance Static Mesh component that is in a locked level. This doesn't af ...

HoloLens auto-enabling as a supported platform in 5.1

https://udn.unrealengine.com/s/case/5004z00001n9MUWAA2/hololens-cannot-be-permanently-disabled-as-a-target-platform?fromCase=1 They disable hololens as a supported target platform, but it is enab ...

Validate whether the usage of FPIEFixupSerializer can be removed from UWorld::DuplicateWorldForPIE

Left thumbstick doesn't trigger as input using CommonUI

https://udn.unrealengine.com/s/question/0D54z00008xo1TpCAI/commonui-left-thumbstick-input-do-not-trigger-onkeydown-properly-even-if-there-isnt-any-navigation-event-being-triggered?fromCase=1 ...

UMovieSceneTrackInstance::GetWorld() does NOT work properly in Editor

UMovieSceneTrackInstance::GetWorld() returns nullptr on Editor, so user can't use any function using WorldContext and Subsystem. The following code change may fix this issue UWorld* UMovieSceneTra ...

Incorrect keying when a Transform Origin is applied

See steps to repro. Our key recomposition algorithms need to take into consideration the Transform Origin manipulations. ...

Math expression nodes should use CommutativeAssociativeBinaryOperator when applicable

Read-only nodes used in math expression should use CommutativeAssociativeBinaryOperator when appropriate. Even though these nodes can't be modified, there is the occasional need to copy these nodes ...

Light function materials using WorldPosition do not render correctly to volumetric fog if there is more than one

There is a one-line fix for this in a shader file, see their PR on GitHub:https://github.com/EpicGames/UnrealEngine/pull/10251/files ...

A Kinematic controlled vehicle is not rendering correctly when it has a non-identity transform.

There are issues with the vehicles rendered position when it is being moved in a kinematic manner, i.e, forcibly moving a vehicle (not simulating it) using either FChaosEngineInterface::SetKinemati ...

Vehicle clutch not fully simulated in Chaos Vehicle Plugin

There is no manual clutch control exposed to users. For completeness this should be available via blueprint in the same way that the settering, throttle and brake are user controlled. ...