Editor slows exponentially when selecting an instanced static mesh in viewport that has a large number of instances

Tools - Jan 19, 2015

Editor slows down exponentially when spawning in a large quantity of instanced meshes. ...

UE5.4 Preview 1 produces rendering artifacts on Landscape with World Position Offset

UE - Graphics Tools - Terrain - Landscape - Mar 28, 2024

A material on a landscape with WPO will cause major ghosting, even if that WPO is a dynamic {0,0,0} ,such as from a black texture. ...

ARKit portrait image aspect ratio incorrect on iPhone 6s,7, probably all phones.

UE - Platform - XR - Nov 29, 2017

As described in this UDN thread, the iPhone 7 manifests incorrect image aspect ratiohttps://udn.unrealengine.com/questions/403841/ios-arkit-portrait-mode-stretching-on-iphone-7.html [Link Removed] ...

ContentExamples PostProcessing map demo 1.13 post process volume screen percentage is not low enough

Docs - Samples - Aug 19, 2016

The post process volume in ContentExamples for Screen Percentage is set to 90 which is too high to notice a difference. The documentation has it at 25 here: https://docs.unrealengine.com/latest/INT/ ...

Box Reflection Capture is placed with a different default scale value when placed from the Quick Add Menu

UE - Editor - Workflow Systems - May 5, 2022

Box Reflection Capture scale is set to 1.0, 1.0, 1.0 instead of 1,000.0, 1000.0, 400.0 when placed from the Quick Add Menu versus other placement methods. ...

Color space transform in the UI composition is incorrect on DX12 HDR (r.HDR.UI.CompositeMode=1)

UE - Graphics Features - Jun 11, 2021

Color space conversion in the UI composition is incorrect on DX12 HDR. In the main() function In CompositeUIPixelShader.usf, you can see the following color space transform.// sRGB -> RRT -> ODT ...

When using StringToBytes() it returns an incorrect value

UE - Foundation - Core - Jan 4, 2018

When using the StringToBytes() function it returns one less byte due to the -1 at the end of the return. The function takes a string and converts it to bytes but it always returns one less byte than ...

Bug in ULevel::FixupActorFolders.

There is a potential bug in ULevel::FixupActorFolders() in the FixDuplicateFolders section: Suppose you have a folder hierarchy that looks like this:A B(1)B(2) C(1)B(3) C(2) where the letters ...

[CrashReport] UE4Editor_Core!FStatsThreadState::ScanForAdvance() [statsdata.cpp:732]

UE - Foundation - Core - Aug 10, 2017

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: Item.NameAndInfo ...