Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor_UnrealEd!UnFbx::FFbxImporter::RecursiveBuildSkeleton()
UE - Editor - Content Pipeline - Import and Export - Jul 30, 2015This is a common crash affecting users. User DescriptionsJust import a Mesh of Fuse Source Context 624 void UnFbx::FFbxImporter::RecursiveBuildSkeleton(FbxNode* Link, TArray<FbxNode*>& Out ...
[CrashReport] UE4Editor_Sequencer!FSequencer::NotifyMovieSceneDataChanged()
UE - Anim - Sequencer - Jul 24, 2017This is a common crash affecting users in 4.16 and into the 4.17 Preview. User Descriptionscopying-pasting curves in Sequencer Source Context 979 void FSequencer::NotifyMovieSceneDataCha ...
Cloth Rendering - Optimizations cause a one frame geometry stretch when off screen cloth is teleported back on screen.
UE - Simulation - Physics - Character - Aug 26, 2021Render optimizations are causing the cloth render data to be updated one frame too late after an off screen cloth object has been teleported back on screen. The optimisation triggers itself after a ...
[Audio Analysis][Ensure] - Sound Submix Spectral Analyzer Delegate Throws Ensure when Analysis Started Before the Delegate is Added
UE - Audio - Nov 25, 2021Hit the following Ensure when trying to use the Spectrum Analyser. Also hit this in 4.26 so it doesn't appear to be a regression. Occurs with any of the following Band Settings or when creating you ...
UE5.4 Regression - crash when disabling shader optimization while raytracing is enabled on D3D12
UE - Rendering Architecture - Shaders - Jul 15, 2024Certain interactions between a Rect Light with a Light Function and a Post-Process volume lead to a check() when compiling a Ray Tracing PSO for tracing lights. This check() only happens when shader ...
[AI] Spatially loaded objects in a WP map that are unloaded do not contribute to the navmesh when Build Paths is run
UE - AI - Navigation - Jun 23, 2025Using Build Paths does not create a navmesh that also includes any Actors or Objects that are unloaded and spatially loaded. The navigation system appears to load the world within the navigable boun ...
Setting the brush type of a custom volume BP causes the editor to crash
Tools - Nov 17, 2014Setting the brush shape of the root component for a custom volume BP causes the editor to immediately crash. ...
LIVE: A Local Variable cannot have its type changed if another local variable with the same name in a different function is in use
UE - Gameplay - Blueprint - Nov 6, 2014Two local variables with the same name in two different functions still interact with each other in some way. This was reported in TTP 346132 and fixed in that case, but currently if a local variabl ...
Undo when modifying a single channel causes Entire Actor track to be selected
UE - Anim - Sequencer - Jul 6, 2016Undo when modifying a single channel causes Entire Actor track to be selected. This is problematic when you're trying to modify just the X, Y, or Z channel in the Graph Editor. ...
Destroying a Component doesn't trigger the OnComponentEndOverlap node
UE - Gameplay - Sep 1, 2015Destroying a Component doesn't trigger the OnComponentEndOverlap node User Description: OK, so I have an actor with only one component: BoxCollision, with default settings. I place it on map. In m ...