Unreal Engine Issues

Non-deterministic packaging when iostore is enabled

There appears to be a pattern of non-deterministic cooks when packaging with multiple chunks. In the case of these reproducible steps, only the assets of chunk1 have been modified. In this case, we ...

MoviePipeline: Incorrect Caching of Min/Max World Delta Time

To test this issue: Create a C++ class WolrdTimeDilationDebugActor.h in your Project with the following code:// Copyright Epic Games, Inc. All Rights Reserved. #pragma once #include "CoreMinim ...

Control Rig function nodes cannot have their color changed in 5.3

UProperty meta ShowOnlyInnerProperties doesn't properly propagate through UStructs

ShowOnlyInnerProperties does not work when a UStruct is embedded inside another UStruct ...

ContentBundleContainer does not load new bundles in PIE after level transition

I believe this issue stems from the ContentBundleContainer not populating the StreamingObjects of the UContentBundleDuplicateForPIEHelper. PIE in the same level as the bundles works as the editor h ...

Opening a Niagara asset that references a disabled plugin (Chaos Niagara) can crash the editor

Opening a module with references to a disabled plugin can crash the editor.  ...

Chaos Clothing CreateClothActor takes a long time with LODs and Self-Collision

Spawning an actor with Chaos cloth causes a hitch when LODs or Self-Collision are enabled on the cloth. LODs and Self-Collision seem to compound the issue. Self-Collision requires a collision simul ...

[Attenuation][Spatialization] - If speaker output is set to stereo, the Surround 2D Non Spatialized Radius Mode doesn't generate any audio

If Surround 2D is set as the Non Spatialized Radius Mode, there is no fallback option if the user's output is not a surround format (eg stereo). There is also nothing communicated in the Tool Tip. ...

PCG Graph callback fails after compiling blueprint

PCG graph callbacks in BP do not appear to get called correctly after the blueprint is compiled. ...

Does FSlateElementBatcher::AddCachedElements need to check if r.HDR.UI.CompositeMode is enabled?

When a specific configuration of HDR cvars are set, PIE in a New Editor Window will not render the game world. Settings (For DefaultEngine.ini): ```[SystemSettings] r.AllowHDR=1 r.HDR.Display.Color ...