Unreal Engine Issues
Unreal Engine Issues
Blueprint Cannot Give Niagara CPU Access To Skeletal Meshes Added From Blueprint
UE - Niagara - Apr 4, 2019When a user tries to add a skeletal mesh component to a blueprint with a niagara system to use the skeletal mesh with that niagara system, the niagara system will stop rendering because it does not ...
Issue during the CapturingScene phase when having Nanite mesh as source component for HLOD Generation
UE - World Creation - Worldbuilding Tools - Feb 17, 2026When generating the textures for Approximate HLOD layers, the Nantie geometry is very low resolution, resulting in the captured textures fitting the actual HLOD geometry poorly. This creates visual ...
Ribbon Particle Normals are reversed from default Sprite Particles
UE - Graphics Features - Oct 13, 2015It appears that the Vertex Normals from Ribbon Particles are opposite of what is expected via the Default Particle System given both systems share the same alignment (Facing Camera) [Image Removed] ...
Input Action Mapping Rebinding not working properly if pawn extends from Pawn.h
UE - Gameplay - Input - Oct 22, 2019Rebinding an action mapping doesn't seem to take effect immediately if the Pawn class used has Pawn.h as its parent class. However this'll take effect immediately with DefaultPawn.h. In addition, th ...
Non-Struct CDO component properties display incorrectly in the property editor.
UE - Gameplay - Blueprint - Aug 17, 2016UObjectProperty properties within a UActorComponent class aren't exposed for editing in the Details panel when choosing to edit native component defaults in the BP editor. ...
Unloading level during PIE leads to editor crash
Tools - Dec 6, 2017Unloading level during PIE seems to lead to an editor crash. Most easily reproducible by enabling malloc stomp. ...
[CrashReport] UE4Editor_SlateCore!FHittestGrid::FindFocusableWidget<<lambda_3a8b364273a2882da220e6e492096c17>,<lambda_d0075a811a928600995d1b2de6795365>,<lambda_105424556dbaeebf7f5bf9bed3e2f737> >() [hittestgrid.cpp:397]
UE - Editor - UI Systems - Jun 18, 2018No user comments in crash group 394 for (StrideCellPoint[StrideAxis] = StrideAxisMin; StrideCellPoint[StrideAxis] <= StrideAxisMax; ++StrideCellPoint[StrideAxis]) 395 { 396 ** ...
Sequencer - Soft References do not work as payloads in Event Track keys, the endpoint event receives none/empty instead
UE - Anim - Sequencer - Jul 31, 2024In sequencer, an "event track" can be added to call functions/events defined in the Sequence Director Blueprint. The parameters for those endpoint functions/events can be sent as a Payload associate ...
Property "GameFeatureData.PrimaryAssetTypesToScan.Directories" should be tagged with "ForceShowPluginContent"
UE - Foundation - Oct 11, 2025When using a Game Feature Plugin, one of the settings available in the "GameFeatureData" DataAsset (class UGameFeatureData) is "PrimaryAssetTypesToScan", which is an array of FPrimaryAssetTypeInfo s ...
Hot Reload crash on PIE with custom AIController and Perception Component
UE - AI - Sep 29, 2015If a pawn in the level is using a custom AI Controller that sets the AIPerceptionComponent in code, the editor will crash on PIE after a hot reload. CrashReporter: [Link Removed] ...