[ModularSynth] - The square wave oscillator is silent in the modular synth component

UE - Audio - Nov 21, 2022

Reproduced 3/3 times. Issue does not occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed Regression. Note that Sound can be heard when Osc types are set to anything else besides Square, or ...

Compilation error in Mac editor builds when adding UWorld::IsStreamingLevelBeingConsidered function

UE - World Creation - Worldbuilding Tools - Jun 30, 2023

This code passes the build when compiled using the windows editor (Visual Studio), but fails when compiled using the mac editor (XCode). Adding ENGINE_API to struct FStreamingLevelsToConsider and ex ...

Ensure occurs while duplicating world partitioned level by WorldPartitionRenameDuplicateBuilder commandlet

UE - World Creation - Worldbuilding Tools - World Partition - Aug 21, 2023

The level seems to have been successfully copied. ...

SkeletalMeshComponent in dedicated server causes memory leak

UE - Graphics Features - Nov 8, 2023

As dedicated server does not have viewport, USkinnedMeshComponent::BoneTransformUpdateMethodQueue array keeps growing and never clear. ...

Reference to material collection by Index instead of by Name causes inconsistency

UE - Rendering Architecture - Materials - Feb 21, 2024

A UDN user reports materials referincing parameter collections by index instead of by name. The problem manifests itself when rearranging the order of parameters belonging to collections, as the edi ...

Lumen doesn't use correct sky light settings when GI scalability changes from Low to High

UE - Graphics Features - Lumen - Sep 24, 2024

When the Global Illumination scalability settings are changed in the editor from High to Medium, they primarily act on the r.Lumen.DiffuseIndirect.Allow and r.SkyLight.RealTimeReflectionCapture.  No ...

Interchange Framework - Missing References on Animation Import with Python Pipelines

UE - Editor - Content Pipeline - Import and Export - Jun 10, 2025

Hello, I'm using Interchange in a UE5.5.4 project with my Pipeline Stack containing a copy of the DefaultAssetPipeline and a custom Python Pipeline. When importing my Animation with only the Defau ...

Skeletal mesh defined in code cannot be set in the editor.

UE - Gameplay - Blueprint - Apr 16, 2015

Defining a skeletal mesh component in code and attaching it to the root component will not allow the component's details to be editable inside the editor. ...

Physics object set to OverlapAll will still collide with the player

UE - Gameplay - Aug 24, 2015

Physics object set to OverlapAll will still collide with the player User Description: The pawn is simply colliding with and causing physics on objects it shouldn't be. To replicate: Set up a new ...

Mouse Position doesn't properly update on tick when framerate is low in standalone game

UE - Editor - UI Systems - Slate - Dec 11, 2015

If a game is run in the standalone editor and the FPS drops to ~20-30 FPS, pressing an event such as LMB and returning the mouse position on tick will cause the tick to jump inconsistently. Note: ...