FApp::IsUnattended checks are missing when a message box is displayed because serialization has gone out of bounds

UE - Foundation - Core - Jan 2, 2018

In cases where serialization goes out of bounds, there is no check to see if the app is running in unattended mode before the message box is displayed. If the app is running unattended, such as on a ...

"Out of video memory" crash when attempting to save many assets with source control enabled

UE - Graphics Features - Sep 25, 2020

This will only repro when connected to source control ...

FKismetCompilerUtilities::ValidateProperEndExecutionPath() was unintentionally removed from compile-time graph validation

UE - Gameplay - Blueprint Compiler - Oct 16, 2023

We no longer include a note/warning when an expected execution path will not be taken in a function graph due to the presence of a return node. This was inadvertently removed by the change that intr ...

Crash with for loop and TArray in constructor to generate multiple StaticMeshComponents

UE - Foundation - Core - Apr 20, 2015

Using a TArray to store multiple components being setup inside a for loop of a constructor will crash on project open. Crash Reporter: [Link Removed] ...

Spline Mesh Component doesn't render if two spline points are directly above and below each other

Tools - Dec 1, 2017

Spline Mesh Component doesn't render if two spline points are placed exactly above and below each other. If they are offset by any value other than 0.0, the Spline Mesh component will be rendered as ...

LIVE: Advanced Lighting Map (new default map in Release) has a Skybox the generates Error on Lighting Build

Docs - Samples - Oct 23, 2014

Opening the Advanced_Lighting Map, the new default map with 4.5.0 and 4.5.1, the Skybox has 4 UV Channels but all of them have overlapping UVs. WORKAROUND - You can Auto Generate UVs for the Skyb ...

Windows 64 bit option greyed out for shipping

When packaging your project for shipping, the windows 64 bit option will be grayed out. I also tested this issue out in main (2455917) and the option is able to be selected but with the 4.7.2 (246 ...

IsValidOrFixable can be false even when IsValid is true in RawMesh.cpp

UE - Graphics Features - Mar 14, 2016

In RawMesh.cpp, there are two functions called IsValid and IsValidOrFixable. A user has reported that there may be an issue here where IsValid can be true while IsValidOrFixable is false. From look ...

Instanced RepNotify variable doesn't update on client if altered in level

UE - Networking - Jul 8, 2019

An instance editable Rep Notify variable will not update on Rep Notify if an instance of if is edited in a scene. A demonstration project can be found here: [Link Removed] Found in 4.22 CL#7053642 ...

New key value pairs added to a data table are not able to be found until the project is reloaded

UE - Gameplay - Dec 13, 2019

Adding a new key to a dataTable deriving from c++ will not be found until the entire project is reloaded. Download link to test project: https://github.com/sorkNasrk/testbug ...