Blueprint Android app installers are named *UE4Game*.bat

UE - Platform - Mobile - Jun 4, 2018

In 4.19 blueprint-based apps are named after the project name, but in 4.20 they are all called Install_UE4Game-armv7-es2.bat. This also affects the Uninstall_*.bat ...

Editing sub-components of an instanced blueprint will lose selection of current property value after pressing enter

UE - Gameplay - Jul 24, 2019

Result of pressing enter when editing text in a subcomponent (of an actor that exists in world) has different behavior than elsewhere in the editor. Confirmed in 4.24 MAIN @ CL 7519848 ...

Severe ghosting on animated objects when camera stops moving in sequences when using path tracer

UE - Graphics Features - Lumen - Aug 2, 2019

Pixels seem to stop updating in the path tracer when a camera stops moving in sequence. Old color values from objects that have moved seem to still affect pixels they should not.  ...

VR Mode - Landscape Mode - Flatten tool crash

UE - LD & Modeling - Terrain - Landscape - Sep 25, 2019

Crash will occur when attempting to use Flatten tool on landscape while in VR Editor. Confirmed in 4.24 MAIN @ CL 9084132 Confirmed on Vive and Rift ...

Custom Time Dilation has no effect on Player Camera Manager

UE - Anim - Sequencer - Jun 10, 2020

It seems like setting Custom Time Dilation on the Player Camera Manager does not affect the amount of time it takes to blend between cameras with Set View Target With Blend. ...

Geometry Collection behavior does not change when changed by BP

UE - Runtime - Deformable - May 2, 2022

Reproduced 6/6 times. This seems to affect all "Set" functions for Geometry Collection Components, such as Setting Object Type from Static to Dynamic, or changing Collision Type. ...

Cooking fails with a Nanite Landscape and 3D text asset

UE - Virtual Production - Avalanche - Sep 20, 2023

Adding a 3D text actor to a level with a Nanite landscape causes cooker to hit an assert Tested in the Following  //UE5-Release-5.3-CL-27405482 ...

GPU particles disabled on Quest

UE - Niagara - Feb 9, 2024

GPU particles were disabled on Quest 1 due to a compute issue. We need to validate / fix issues for Quest 2 / Quest 3. Reported in [Link Removed] ...

Poor Vulkan RHIThread performance in Development builds on some Android

UE - Platform - Mobile - Dec 10, 2024

Community-attempted workaround received in [Link Removed] Correct fix submitted to 5.6 FNMain in [Link Removed] which needs integrating into 5.5.3. ...

Chaos Cloth - Visualization materials cause async load flush and slows down starting a PIE session.

UE - Runtime - Simulation - Aug 13, 2024

The loading of the cloth visualization materials disturbs async loads shortly after starting PIE which causes an async flush and several seconds stall. The solution would be to move these to a sing ...