Unreal Frontend crashes when loading a ue4stats file

UE - Foundation - Core - Nov 27, 2018

If Unreal Frontend has been built in the Development Editor configuration, attempting to open a ue4stats file in the Profiler tab results in the Unreal Frontend crashing. The crash does not occur if ...

Creating a new Physics Asset will override the behavior of the previous Physics Asset inside the Phat Editor

UE - Gameplay - Aug 11, 2016

Creating a new Physics Asset will override the behavior of the previous Physics Asset inside the Phat Editor. This seems to be linked to which physics asset is currently assigned to the skeletal me ...

The Open Level command is causing Android devices to freeze up

UE - Platform - Mobile - Dec 1, 2014

If you use the Open level node in the newest promoted build, once the project is deployed to an Android device, when triggered with a UMG, the project will freeze and be unplayable. Issue does not ...

Niagara compile error : Select Position from Array

UE - Niagara - Nov 24, 2022

A similar node, Select Vector From Array, does not have this problem. The difference between the two seems to be whether or not Required is checked in the input node's exposure options. ...

Unable to save a map file when editing a LevelInstance by placing multiple LevelInstances on a PersistentLevel

UE - World Creation - Worldbuilding Tools - Level Instances - Mar 17, 2023

Can not save the map file, if trying to edit a LevelInstance in a PersistentLevel where multiple LevelInstances are placed. The workaround is to open and edit the LevelInstance as PersistentLevel.  ...

AnimMontage notify callback destroying owning actor causes crash

UE - Runtime - Animation - Jul 28, 2022

Destroying the owning actor as a response to an anim montage's anim notify causes unsafe access of the current anim montage. See repro steps. ...

Warning spam when binding the "Frame" property of the HeterogeneousVolumeComponent on the Sequencer

UE - Niagara - Jan 24, 2024

I think it doesn't like the "bPlaying == false" expression for the EditCondition meta tag on the UPROPERTY... You also get these warnings every single time the Sequencer plays through a keyframe on ...

Hot Reload crash with Scene Component tied to Actor class

UE - Foundation - Core - Feb 19, 2015

After creating a Scene Component code class and an Actor code class, creating a reference to the SceneComponent in the Actor class constructor will cause a crash on hot reload in the editor. ...

Importing FBX file with same material slots and texture names has bugs

UE - Editor - Content Pipeline - Import and Export - Jul 31, 2020

When importing a file from Blender, UE creates the correct number of materials, but the number of textures is incorrect and is being overwritten, and not importing the correct amount. Tested and re ...

Child Actor Components do not update their internal properties when applying instance changes to other instances

UE - Framework - Components - Apr 14, 2022

Child Actor Components do not update Materials when applying instance changes to other instances. Repro Rate: 3/3 Tested this in //UE4/Release-4.27 @ CL#18319896 and the issue did occur there, it ...