LIVE: Setting sg.EffectsQuality between values will reset Destructible meshes if they have fractured

UE - Simulation - Physics - Destruction - Nov 14, 2014

DESCRIPTION: Using the command line sg.EffectsQuality and setting a value will reset a destructible mesh if it has already been fractured. AH Post: https://answers.unrealengine.com/questions/12850 ...

Painted Vertex colors are not retained when using "Convert Selection to Blueprint Class" in Child Actor mode

UE - Gameplay - Blueprint - Aug 25, 2020

From the User Submission: I spent some time poking through the FComponentInstanceDataCache code and noticed that there is no component instance data saved/applied for'native' component types, so si ...

Shader Compiler Crashes in Remote Build

UE - Graphics Features - Nov 11, 2019

Output log when crashing UATHelper: Packaging (iOS): LogCook: Display: Max memory allowance for cook 16384mb min free memory 0mb UATHelper: Packaging (iOS): LogCook: Display: Mobile HDR setting 1 ...

Actors unrelated to the changelist being validated cause errors

UE - World Creation - Worldbuilding Tools - World Partition - Nov 22, 2023

When validating a changelist, unrelated errors to the changelist can appear. Here's an example of running the validation on a cl named "temp cl" which just contains a single actor "Cylinder". The A ...

Control Rig: crashes when compiling after rearranging input pins in an array in Example Rig Unit

OLD - Anim - Aug 20, 2019

The crash doesn't occur every time, but it will happen within 3 swap and compiles in my experience. I got multiple different callstacks when I cause the crash using the reproduction steps (they are ...

The Random Audio Node Function 'Randomize Without Replacement' does not Function Correctly

UE - Audio - Apr 6, 2015

When attempting to play random sounds using the 'Random' node within the audio editor, the 'Randomize Without Replacement' does not function as explained via the tooltip. The options says that if y ...

Project Crashes on Open when Implementing An Interface and Its Duplicate

UE - Gameplay - Blueprint - Apr 25, 2016

The linked project crashes on open after attempting to implement an interface and a duplicate of that same interface with different function names. This has not been reproduced in a clean project, h ...

Light as If Static setting does not Persist when Re-opening Project

Tools - Apr 28, 2016

This bug was originally entered back in 4.8 as [Link Removed], but was closed as by design. The reason was, the mesh did not have Lightmap UVs, so using the 'Light as If Static' option would not wor ...

Potential Memory Leak when frequently terminating and re-initializing FConstraintInstance

UE - Simulation - Physics - Mar 29, 2022

From User: When frequently terminating and re-initializing the FConstraintInstance, there appears to be a leak when cleaning up the disabled joint, which leads to an ever growing list that gets sort ...

Level Object value is lost when a new level is loaded using the same BP

UE - Gameplay - Blueprint - Dec 2, 2021

First discovered this on Linux in //UE5/Main. In the repro, you play from level 2; if you opened Level 1 and played from there, the same outcome would occur. LogNet: Warning: Travel Failure: [Clien ...