Editor Periodically Has Performance Drops In Basic Scenes

Tools - Dec 27, 2019

The Editor experiences performance drops even in the default basic level when left alone running. I experienced them every ~3 seconds. My graph didn't show the drops very clearly so the fps counter ...

Media Plate Actor becomes blacked out when set to Spawnable in a Level Sequencer

UE - Virtual Production - Rendering - Jun 7, 2023

saving a media plate actor set to spawnable in a level sequence causes the media plate actor to become black. there are two known workarounds 1. toggling the Media plate to Possessable, and Spawnabl ...

Difference in Shader Complexity view mode between Static Mesh and Painted Foliage Actors after Enabling 'Dbuffer Decals' in Project Settings

UE - Graphics Features - Oct 19, 2016

The 'Shader Complexity' view mode is rendering differently between regular Static Meshes and Painted Foliage instances after enabling 'DBuffer Decals' The user is reporting that this does not seem ...

Camera Vector on Strata materials is rendering the wrong colors

UE - Graphics Features - Substrate - Jan 4, 2023

Regression: Strata is new in UE5/Release-5.1, but recreating this on a normal material renders the same colors, so regression is no. According to a user the material is supposed to be rendering Blu ...

When TSR is enabled, the maximum brightness is clamped to about 16000.

UE - Graphics Features - Jun 7, 2022

You can also check it by enabling real-time rendering in the NewMap.umap of the attached project, and then clicking on "High Resolution Screenshots". (You may need to disable and enable post-process ...

Overridden functions in Child Blueprints cannot be converted to/from pure functions

UE - Gameplay - Blueprint - Jun 27, 2015

Overridden functions in Child Blueprints cannot be converted to/from pure functions. Reproduced in 4.8.1 and Main (//depot/UE4/Promotable-CL-2601051) ...

Handheld AR On IPad Has Dark Contrast Issues And Constant Screen Tearing When Mobile HDR Is Disabled

UE - Platform - XR - Mar 4, 2020

When MobileHDR is disabled in a packaged AR project for iOS there is a big constrast with the brightness in the image and constant screen tearing. This is happening specifically with images captured ...

Functions in the Level Blueprint throw a warning on PIE

UE - Gameplay - Blueprint - Mar 3, 2015

Functions in the Level Blueprint throw a warning on PIE: LogBlueprint:Warning: FMemberReference::ResolveMember (NewFunction_0) bSelfContext == true, but no scope supplied! Every function logs thi ...

[AI] Assert leading to crash in FRecastTileGenerator::AddReferencedObjects

UE - AI - Navigation - Dec 9, 2022

Licensee has reported a couple cases of an assert happening stemming from FRecastTileGenerator::AddReferencedObjects in a built game. They are limiting the MaxTileGeneratorTasks to 1. The crash occu ...

Precomputed AO Mask is no longer working

UE - Graphics Features - Dec 23, 2015

Precomputed AO Mask is no longer working in 4.11 Preview 1. This is a Regression from 4.10.x where this was working as intended. I've attached a zip file with the quick test that can be dropped in ...