Refraction broken when using material function

UE - Rendering - Features - Aug 10, 2021

Licensee has provided a BP workaround ...

ScreenshotCapturedDelegate is never called in HDR

UE - Platform - Console - Nov 21, 2025

In UGameViewportClient::ProcessScreenShots, when bHdrEnabled is true, the Bitmap array is never filled (the capture code uses BitmapHDR), so ScreenshotCapturedDelegate is never called for any custom ...

Meshs in a hidden sublevel may generate incorrect navmesh

UE - AI - Navigation - Nov 6, 2020

If the level has hidden sublevels, the regenerated navmesh result appears to have a hidden sublevel mesh placed at the origin. Apparently, the reason is that bNavigationRelevant is no longer consid ...

GameplayEffects: Inherited UAssetTags and UTargetTags do not update their referenced tags correctly with inheritance

UE - Gameplay - Jan 25, 2024

When inherited, it is reasonable to expect the tags added by the parent to be reflected in the children. If the parent is editted after the children, however, tags that are added or deleted are not ...

Ortho near plane clips geometry in Editor Top view

UE - Rendering - Architecture - Aug 9, 2024

When the viewport is in Top (ortho) Lit mode the near plane clips through geometry as you zoom the view in and out. ...

HISM(Hierarchical instance static mesh) has lightmap problem after building lighting

UE - Graphics Features - Aug 5, 2018

HISM has lightmap issues after build lighting ...

Soft Raytracing Shadows are flickering

UE - Rendering - Features - Ray Tracing - Feb 18, 2025

[Image Removed][Link Removed] ...

Actors attached to editor only actors have incorrect location in PIE

UE - Engine Scaling - Streaming - World Partition - Jan 19, 2024