Unreal Engine Issues
Unreal Engine Issues
Walking on a movable TG_PostUpdateWork produces incorrect component positions
UE - Gameplay - Player Movement - Dec 5, 2018When an actor set to movable and ticking with TG_PostUpdateWork is walked over, the character's capsule component position is incorrect during movement. ...
Landscape LOD tessellation is broken in 4.24
UE - LD & Modeling - Terrain - Landscape - Oct 16, 2019Landscape LOD tessellation creates big holes in landscapes. ...
Flushing Level Streaming Can Trigger Actor Initialization during World Teardown
UE - World Creation - Worldbuilding Tools - Oct 16, 2023From licensee: We've recently encountered an issue where BeginPlay was called on an Actor while the World is being torn down. This seems to stem from flushing level streaming while it has levels th ...
Motion Matching FPS instability causes jittering when using the root offset node
UE - Anim - Gameplay - Feb 23, 2026Offset root node is affected by frame rate and produces jitter in it's motion across various settings and styles. ...
A text block in the designer tab does not reflect the text within a variable that is used in a binding
UE - Editor - UI Systems - Jul 30, 2015When using a text variable as a binding for a text block, the text does not reflect the default value that is assigned to the variable that the text block in bound to. This can make it more difficul ...
Crash when attempting to generate an event in an Event Handler
UE - Niagara - May 27, 2020Crash when attempting to generate an event in an Event Handler ...
Niagara Parameter Collection doesn't work for Simulation Stage
UE - Niagara - Jan 31, 2021Editing values of a control rig can cause the undo to stop working in Anim Details or Sequencer
UE - Anim - Anim in Engine - May 16, 2025It has been observed that the the undo function may stop working after the User changes values of a control rig with the slider in the Sequencer. While using the slider, the value stops chaning afte ...
[CrashReport] UE4Editor_CoreUObject!IncrementalPurgeGarbage() [garbagecollection.cpp:1042]
UE - Editor - UI Systems - Localization - May 31, 2016This JIRA is being entered as a result of being one of the top crashes in 4.12 Preview 5 In the 4.12.0 release, we currently have a user on the Answerhub who experiences this crash: https://answers ...
Doing a Rebuild in Visual Studio fails to compile
UE - Foundation - Cpp Tools - UnrealBuildTool - Apr 19, 2016Attempting to use the Rebuild option in Visual Studio will fail to build the project. It instead produces a message that "Epic was unexpected". ...