Unreal Engine Issues
Unreal Engine Issues
[AI] Gaps between Nav Mesh tiles in World Partition map causing movement issues
UE - AI - Navigation - Nov 4, 2025Navmesh has seams between some tiles that are actual edges rather than previously found "gaps" where it was a debug rendering issue. Pathfinding does fail between these tiles to go straight across. ...
Landscape Splines in Partially Loaded World Partition Levels Can Cause Nanite Landscape Invalidation
UE - Graphics Tools - Terrain - Nov 7, 2025Certain placements of landscape splines in world partition levels can cause Nanite landscape proxies to invalidate, and switch back to their non-nanite version. This happens when specific regions of ...
List view reorders itself as it is scrolled through.
UE - Editor - UI Systems - Feb 26, 2019The widgets in a list view widget will appear to reorder themselves as they are scrolled through. ...
Physics Constraint Component loss of accuracy
UE - Simulation - Physics - Mar 6, 2025Physics Constraint Component has lost accuracy between Unreal versions 5.2 and 5.4 (and up). When measuring the exact distance between rigid bodies constrained by a Physics Constraint Component, the ...
UMG textfield crash with using Metal
UE - Graphics Features - Dec 12, 2016UMG textfield crash with using Metal after switching screens and spamming a UMG text field. User provided an example video for reference. Link: [Link Removed] ...
Components spawned at runtime do not take Radial Damage if simulating physics
UE - Gameplay - Mar 16, 2015Components spawned at runtime do not take Radial Damage if simulating physics. ...
UWorldPartitionSubsystem::IsStreamingCompleted returning the wrong query result when all cells and actors in location are in DataLayers
UE - World Creation - Worldbuilding Tools - World Partition - Jul 24, 2025Context: Data Layers is a system within World Partition used to organize Actors both in the Editor and at runtime. It allows for the user to dynamically load and unload layers in the Editor to help ...
CharacterMovement doesn't clear velocity
UE - Simulation - Physics - Oct 11, 2024Velocities are not being cleared when physics simulation set to false. ...
Dev Folder is referencing/being referenced by UE4_Mannequin
Docs - Samples - May 6, 2015Basically UE4_Mannequin is causing a dev folder to show up if you add the template as a content pack. It's a few materials that are being kept there. ...
Cracks in polygons in BSP Optimize
UE - Graphics Tools - Modeling Tools - BSP - Jul 1, 2021This problem also occurs when the Create Convex Polygons checkbox is checked in the Pen tool. ...