Unreal Engine Issues
Unreal Engine Issues
[AI] Navmesh does not generate correctly on a plane that has a slope of 45 degrees or more.
UE - AI - Navigation - Sep 23, 2022Navmesh generation appears to have issues handling terrain and planes that are at 45 degree or steeper angles even if the agent max slope is set to allow for such movement. While the issue occurs at ...
Datasmith exporters causing problems for Github users building from source code
UE - Editor - Content Pipeline - Datasmith - Importer - Dec 19, 2019d:\unreal\unrealengine-4.24\engine\source\programs\enterprise\datasmith\datasmithsketchupexporter\private\DatasmithSketchUpCamera.h(7): fatal error C1083: Cannot open include file: 'SketchUpAPI/geom ...
Updating C++ projects with Marketplace plugins in 4.25.2 fails to build project
UE - Foundation - Cpp Tools - Plugin System - Jul 24, 2020Projects 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, 2020The 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 ...
CapsuleComponent Shape sometimes reverts to previous value after entering a new value
UE - Foundation - Core - Nov 28, 2014If you manually type in the value for Capsule Half Height, it will sometimes revert back to it's previous value upon hitting Enter. The CapsuleComponent's shape in the Blueprint's Viewport adjust to ...
Mirror Data Table is NOT added SyncMarker automatically when creating
UE - Anim - Runtime - Oct 27, 2022Mirror 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 ...
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, 2025Context: 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, 2021Properties 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, 2022When 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, 2020The 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 ...