Packaged size of project is double its size when packaging for Shipping Windows (32 bit)

UE - Foundation - Core - Mar 9, 2015

When you package a project in 4.6.1 for Windows (32 bit) shipping, the file size is around 160 MB. When you package a sample project in 4.7.2, the packaged size will be around 345 MB. [Link Remove ...

Distance Field AO leaving trail of occlusion shadow where character mesh has been.

UE - Graphics Features - May 21, 2015

When using DFAO and moving around the world a trail will be left behind the where the player has been while PIE/Standalone game is being used. This is cleared when exiting these modes. **Video att ...

Destructible component doesn't register hit event with Landscapes

UE - Simulation - Physics - Destruction - Aug 9, 2016

Destructible component doesn't register hit event with Landscapes. The only way to get the Destructible to register the event is to enable Impact Damage on the Destructible mesh. User Description: ...

Oculus mirror window goes black when headset removed for any mirroring mode besides 0

UE - Platform - XR - Nov 16, 2016

If using any hmd mirroring mode besides 0 on Oculus, when the headset is removed, the mirroring window goes black in a packaged build, or in -game, for example: UE4Editor.exe VrTemplate4x15 MotionCo ...

Setting FActorSpawnParameters::bRemoteOwned causes inconsistent behavior when spawning actors

UE - Gameplay - Sep 13, 2016

If FActorSpawnParameters::bRemoteOwned is set to true, calling SpawnActor with this spawn param on begin play has different behavior than calling the SpawnActor elsewhere during runtime. If using n ...

Precomputed AO Masks cannot be used to LERP between Normal Maps

UE - Graphics Features - Sep 18, 2015

When using the Precomputed AO Map node to LERP between 2 Normals, only the A input into LERP will render out on the mesh. The Precomputed AO will work fine for Base Color LERPs Example: [Image Re ...

Set Array Elem is missing the Item checkbox when connected to an existing array variable

UE - Gameplay - Feb 8, 2017

Set Array Elem is missing the Item checkbox when connected to an existing array variable that was created separately. The checkbox is present if the Set Array Elem is created off of the array variab ...

Material re-route nodes break TextureSample output

UE - Rendering Architecture - Materials - May 4, 2017

This is a bug found by a licensee ...

Crash on packaged game. 4.23 will not nativize a class that creates instanced properties inside itself

UE - Gameplay - Oct 1, 2019

Description from the user: up to 4.23 properties nativize normally if they are written in C++ with the Instanced specifier. The discerning difference is that that there was no Blueprint Class itsel ...

MoviePipeline: Cannot add per-shot {file_format} name overrides

UE - Anim - Sequencer - MRQ - Feb 3, 2022

void UMoviePipelineBlueprintLibrary::ResolveFilenameFormatArguments(const FString& InFormatString, const FMoviePipelineFilenameResolveParams& InParams, FString& OutFinalPath, FMoviePipelineFormatArg ...