Unreal Engine Issues

Grass does not show up when I override the Material of LandscapeComponent.

Regression checked in //UE4/Release-4.26.2 CL 15973114 the issue is not reproduced thee ...

ODSC - Launching a newly created project via UnrealFrontend fails to load some materials and crashes

The same repro steps on 4.26.2 will launch the project successfully. Packaging a project once to create complete ShaderMaps will work around the issue. ...

HiResScreenshot has incorrect masking when screenshot resolution scale does not match the viewport.

After a bit of investigation, the way to fix this would be to modify MergeMaskIntoAlpha to pass in the actual resolution scale and the requested size, and only mask the overlapping pixels. Currently ...

Android Vulkan SM5 crash at startup

Crash Applying Multiple Anim Modifiers

Fatal error: [Link Removed] [Line: 2516] Fatal error: [Link Removed] [Line: 2516]Objects have the same fully qualified name but different paths. New Object: MotionExtractorModifier /Game/Characters/ ...

Wrong Role in BeginPlay of startup actors respawned by a replay scrub

The Role/RemoteRole of net startup actors that get respawned during the replay scrub will be incorrect/swapped during BeginPlay (but not later for any onreps we process). ...

GeometryCaches don't implement CreateHitProxies to create a unique hitproxy per section/material

This causes the ObjectId pass in MRQ to fail to distinguish between materials in the resulting Cryptomatte file. It looks like FGeometryCacheSceneProxy doesn't implement CreateHitProxies so it's f ...

APlayerController::FlushPressedKeys is (incorrectly?) called when the client viewport loses focus.

When focus changes an IE_Released event occurs for the W key (your character stops moving) due to UGameViewportClient::LostFocus calling APlayerController::FlushPressedKeys. Because of the R key pre ...

Component Created in C++ is destroyed before BeginPlay

Tracking a potential issue where components in C++ are being "lost" prior to BeginPlay. Renaming the reference variable seems to work around the issue, but the cause is currently unknown/needs more ...

[Dynamics Processor][Audio Bus Sidechain] - Audio Bus Sidechain doesn't function the second time a sound is triggered

Retriggering a sound using an Audio Bus as a sidechain on a Dynamics processor seems to not uses the sidechain. The sidechain will start working again if it's reset on the Dynamics Processor effect ...