Trying to set/change an element of a fixed-size TAssetPtr array in the Editor results in a crash.

UE - Foundation - Core - Dec 9, 2016

Trying to set the value of an element of a fixed-size TAssetPtr array in the Editor results in the Editor crashing. This did not occur in 4.13. The attached callstack is from debugging the project ...

Runtime Errors appearing in Sequencer if fixed frame rate is set in projects settings

UE - Anim - Sequencer - Apr 12, 2019

This ensure happens only when the Start and End of the sequence is set in the "neigborhood" of the keyframe and only if the project framerate is to be Fixed on 60FPS. If you for example play the who ...

Null Redirector For Main Game Level Is Packaged Without Error After Fixing Redirector

Tools - Feb 24, 2020

After moving a level into a folder and fixing the redirectors (right click in content browser) the project will package a Null reference without throwing an error. This will let you create a project ...

Multiple Blueprint compilation passes required to fix up event binding to dispatcher after event rename

UE - Gameplay - Blueprint Compiler - Nov 30, 2021

Renaming a custom event bound to an event dispatcher via a Create Event node requires two compilation passes to fix up the binding.  upd. Regression was checked on //UE4/Release-4.26 CL 15973114, i ...

Fix AssetManager rules overrides in case PrimaryAssetTypesToScan for PrimaryAssetLabel sets bApplyRecursively=false

UE - Foundation - Data Pipeline - Cooker - Dec 11, 2023

SetPrimaryAssetRules sets the "is overridden" variables (e.g. bOverrideApplyRecursively) based on a comparison with the global default rules:static FPrimaryAssetRules DefaultRules; ... ExplicitRu ...

Transform node which transforms a vector from mesh particle space to world space in vertex shader doesn't work on ue4.25

UE - Niagara - May 27, 2020

Transform node which transforms vector from mesh particle space to world space in vertex shader always returns 0. In ue4.24, it works fine. This behavior has been changed in CL#12558699. Removing f ...

Oculus NetDriver Regression/Fix

UE - Platform - XR - Oct 26, 2019

From https://github.com/Oculus-VR/UnrealEngine/issues/60#issuecomment-544537005 UOculusNetDriver::LowLevelSend was modified to take an FInternetAddr pointer instead of an FString (due to the same c ...

Fix support for compiling editor in monolithic

UE - Foundation - Cpp Tools - UnrealBuildTool - Jul 1, 2016

Some licensees have reported good results compiling the editor in monolithic configurations - startup times are noticably shorter. I believe there are a number of things that need fixing up across t ...

Fix UMovieSceneSequence::FindPossessableObjectId for child bindings

UE - Anim - Sequencer - Nov 28, 2022

Calling UMovieSceneSequence::FindPossessableObjectId with a guid that relates to a child binding does not work correctly because it just goes through the binding references and calls LocateBoundObj ...

Crash when destroying a geometry collection actor

UE - Simulation - Physics - Aug 7, 2020

When an actor with geometry collection is destroyed, the engine doesn't remove elements from array in the ChaosSolver So illegal references occurs. Removing element with following quick fix code ...