Android Vulkan SM5 crash at startup

UE - Platform - Mobile - Sep 6, 2021

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

UE - Editor - Datasmith - Sep 3, 2021

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.

UE - Gameplay - Input - Sep 3, 2021

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 ...

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

UE - Audio - Audio Bus - Sep 2, 2021

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 ...

Fatal Error: FMallocBinned2 Attempt to realloc an unrecognized block when exiting a packaged game that has the Bink Media plugin enabled

RAD - Bink Video - Sep 2, 2021

When exiting a packaged project with the Bink Media plugin enabled, a fatal error is shown. This does not occur in packaged projects without the Bink Media plugin enabled. The Bink Media plugin doe ...

Splitscreen View2 influences translucency in view 1

UE - Rendering - Sep 2, 2021

The videos + screenshots in the zip file show the issue on the modified gun sight. The licensee has provided a suggested fix here -[Link Removed] ...

>1ms increase in frame time with showflag.translucency , despite minimal translucency in the scene

UE - Rendering - Sep 2, 2021

Licensee reports this change, and can confirm a very rough similarity observed in a template project in 4.27: [Image Removed] ...

OpenXR Thumbstick Up/Down/Left/Right Input Actions do not fire

UE - Platform - XR - Sep 1, 2021

OpenXR Thumbstick Up/Down/Left/Right Input Actions do not seem to fire.  I tested on Quest 2, but it sounds like the problem may be all of OpenXR. ...

Runtime import, does not generate proper materials

UE - Editor - Datasmith - Importer - Sep 1, 2021

The models are darker than the one loaded directly in editor Left runtime, right editor [Image Removed][Image Removed] [Image Removed][Image Removed] You can find some details here from a udat ...