Editor preview safe zones for notched iPhones do not match those used at runtime

UE - Platform - Apple - Dec 4, 2020

Hi, on iOS we ask the device for its cutout regions, but the values returned by the device can be overridden using the SafeZone.Landscape.* cvars. However these are on-device only settings. When th ...

Crash in RHICommandContext& GetContext() in Test/Shipping builds when bUseChecksInShipping is true

UE - Rendering Architecture - RHI - Nov 29, 2022

RHIinit() calls GRHICommandList.GetImmediateCommandList().GetContext() to make sure that GDynamicRHI->Init() initialized the immediate command list (by calling FRHICommandListImmediate::InitializeIm ...

Fractured Geometry Collection triggers a crash when colliding with an Animation Blueprint with a Rigidbody Node

UE - Simulation - Physics - Character - Sep 25, 2023

This is not a regression. Tested in //UE5/Release-5.2 CL26001984 The editor crashes when a physics asset of an animation with rigid body collides with geometry collection. ...

Chaos Clothing CreateClothActor takes a long time with LODs and Self-Collision

UE - Simulation - Physics - Jan 21, 2024

Spawning an actor with Chaos cloth causes a hitch when LODs or Self-Collision are enabled on the cloth. LODs and Self-Collision seem to compound the issue. Self-Collision requires a collision simul ...

Changing blueprint default values inside arrays only updates loaded child blueprints

UE - Foundation - Core - Jul 30, 2020

The rules for delta serialization in UE4 are complicated, and the editor tries to hide them from you, which works 90% of the time but can lead to confusion and data loss in other situations. In the ...

LiDAR not importing colors correctly for .E57 Point Clouds

UE - Editor - Content Pipeline - Jan 6, 2023

Reproduced 3/3 times, issue does not occur in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed Regression. LiDAR plugin is version .08 in UE5.0.3, and version 1.0 in UE5.1.0 ...

Cooked materials and material instances size have doubled when upgrading from 5.1.0 to 5.2.0

UE - Rendering Architecture - Materials - Jul 18, 2023

UDN: [Link Removed] A UDN customer has observed that their cooked materials have doubled in asset size going from 5.1 to 5.2. We need to investigate this is only a local issue on their side and no ...

GroupActor has incorrect streaming bounds when created in level instances

UE - World Creation - Worldbuilding Tools - Nov 16, 2023

[UDN - 00707230] DetailLayoutHelpers ensure when using VisibleAnywhere Instanced properties

UE - Editor - Workflow Systems - Jan 11, 2024

From UDN Description Hello, there's an ensure that's firing in `DetailLayoutHelpers.cpp#137`: [Start code block] ensure(PropertyNodeMap.ParentProperty == CurObjectNode); [End code block]when ...