Mismatch of light position and PerObjectProjectedShadows

UE - Graphics Features - Jul 23, 2024

Per-Object shadows cast by a stationary point light do not appear in the correct place on movable geometry. ...

RecastNavmesh contents are non-deterministic across navmesh builds

UE - Runtime - Character - Mar 2, 2026

Per-tile data such as TileIndex and salt are stored non-deterministically. ...

Inconsistent UI for Parent Socket field

Tools - Aug 18, 2015

Concerning the UI, in most cases clicking on the magnifying glass will navigate to the selected asset in the Content Browser. Clicking on the magnifying glass next to the Parent Socket field result ...

HLOD generated proxy doesn't create or assign target lightmap coordinate index any longer

UE - World Creation - Worldbuilding Tools - HLOD - Sep 6, 2016

There are instances where HLODs will either generate a lightmap but not assign it to the correct Lightmap Coordinate index from the target lightmap setting in the HLOD outliner or the Lightmap will ...

Exporting Landscape Heightmap using Copy/Paste Tool produces Pixelated results

UE - LD & Modeling - Terrain - Landscape - Jul 6, 2017

When exporting a .raw file heightmap using the Copy/Paste tool, the file produced has a greyscale and pixelated result. ...

Ocean not centered at correct location when placed away from the origin

UE - Graphics Tools - Terrain - Water - Mar 21, 2023

This display problem is a problem in the editor and Ocean was drawn normally during the PIE. When the problem occurred, we observed that only a part of the WaterInfoTexture in the WaterZone was wri ...

VALIDATE_UNIFORM_BUFFER_LIFETIME fails compilation

UE - Graphics Features - Jul 24, 2025

Also verified on Release-5.5.4 CL 40574608 ...

Distance Field Artifact with Point/Spot Lights with Mesh scaled to 0 on XYZ

UE - Graphics Features - Apr 30, 2015

When using a Spot/Point Light with Distance Fields enabled and a mesh that is scaled to 0 on the XYZ will result in artifacts. ...

"Set Anim Instance Class" broken after using "Play Animation" node

OLD - Anim - Jul 17, 2015

After using a "Play Animation", the user cannot set the character back to using an AnimBP via the "Set Anim Instance Class" node. Workaround: Use two "Set Anim Instance Class" nodes. One to set i ...

Collision is not updated on Slave Meshes when using "Set Master Pose Component"

OLD - Anim - Feb 17, 2016

Collision pose is not updated on Slave Meshes when using "Set Master Pose Component". This occurs with both Physics assets and Per-Poly collision This severely effects anybody making characters ou ...