Updating C++ projects with Marketplace plugins in 4.25.2 fails to build project

UE - Foundation - Cpp Tools - Plugin System - Jul 24, 2020

Projects created in previous engine versions fail to build in 4.25.2Running D:/Epic Games/UE_4.25/Engine/Binaries/DotNET/UnrealBuildTool.exe Development Win64 -Project="D:/Unreal Projects/MyProject4 ...

Ensure condition failed : SkeletalMeshLocation module on scaled SkeletalMesh

UE - Niagara - Jul 14, 2020

The message in ensure is below LogOutputDevice: Error: === Handled ensure: === LogOutputDevice: Error: Ensure condition failed: (FMath::Abs(1.f - M.GetScaledAxis(EAxis::X).SizeSquared()) <= (1.e-4 ...

A physics actor will still bounce if the Restitution of a Physical Matieral is set to 0

UE - Gameplay - Oct 6, 2016

A physics actor will still bounce if the Restitution of a Physical Matieral is set to 0 User Description: Explanation : I am trying to create a Badminton Game for fun and while I was trying to han ...

Mirror Data Table is NOT added SyncMarker automatically when creating

UE - Anim - Runtime - Oct 27, 2022

Mirror Data Table is added rows about Bone, Curve, Notify when creating. But SyncMarker is ignored. The following codes can fix this issue. Engine/Source/Runtime/Engine/Private/Animation/MirrorDa ...

Attached Project Crashes While Opening After Conversion From 4.10 to 4.11

UE - Foundation - Core - May 3, 2016

The attached project is now crashing after being upgraded from 4.10.4 to 4.11.2. This crash also occurs when attempting to open a copy of the project in 4.12 Preview 1. After further investigation ...

PCG: Unable to use Attribute property overrides to target nested struct properties, such as BodyInstance.CollisionProfileName due to how it's validated in PCGMeshSelectorByAttribute.cpp

UE - World Creation - Procedural Tools - PCG Graph - Jun 17, 2025

Context: Static Mesh Spawner is used to spawn one static mesh per point in the provided point data. PCGMeshSelectorByAttribute is used to select an entry based on an attribute present on the mesh. ...

Once an actor channel is closed by NetCullDistance, root motion movement synchronization stops working

UE - Networking - Jul 12, 2021

Properties that uses DOREPLIFETIME_ACTIVE_OVERRIDE (ex. RepRootMotion ) will also skip replication when an actor channel is newly opened. This means that if the variables on the server side do not c ...

Editor queries source control for files outside the project or engine

UE - Platform - XR - May 12, 2022

When using SVN as SSP, the following warning will be output to the log LogContentStreaming: Texture pool size now 1000 MB LogSourceControl: Attempting "svn status --show-updates --verbose --xml "/ ...

Available network bandwidth is too low for uncapped but slow frame rates

UE - Networking - Sep 24, 2020

The networking system has a max frame rate of 120hz by default. Inside UNetConnection::Tick it computes an estimated bandwidth by using that max frame rate, the engine's max frame rate, and the actu ...

Surface snapping attached actors cause unexpected behavior

Tools - May 17, 2019

Surface snapping causes erratic changes in scale to StaticMeshActors that have children of the same type. The user also has provided a potential solution to this bug (Please see the code below. N ...