Confusing message when attempting to connect mismatched Delegate pins

UE - Gameplay - Blueprint Editor - Aug 26, 2019

When the user attempts to connect delegate pins that don't match, they received a confusing mouse tooltip message that simply reads "Delegate is not compatible with Delegate". Suggested fix: When ...

Volumetric Lightmaps Persist When Opening Different Level

UE - Graphics Features - Lumen - Feb 24, 2020

When moving between levels with built lighting volumetric light maps persists between levels. Workaround: Load the same level twice. Found in 4.24.2 CL#11100242 Reproduced in 4.26 Main CL#11574810 ...

Movie Render Queue renders are not displaying Landscapes

UE - Anim - Sequencer - Nov 4, 2020

When creating a Movie Render Queue render with a landscape the render does not display the landscape. This issue is occurring in 4.26 Binary CL 14627614 This issue is NOT occurring at 4.25. Binary ...

Pixelated volumetric translucent shadows

UE - Graphics Features - Aug 17, 2021

I narrowed down the issue to the Main call of ShadowProjectionPixelShader, and tested (on 4.26 and 4.27) a combo of different material and light shadow settings, as well as enabling transmission on ...

Fatal Error: FMallocBinned2 Attempt to realloc an unrecognized block when exiting a packaged game that has the Bink Media plugin enabled

RAD - Bink Video - Sep 2, 2021

When exiting a packaged project with the Bink Media plugin enabled, a fatal error is shown. This does not occur in packaged projects without the Bink Media plugin enabled. The Bink Media plugin doe ...

Material does not render correctly when launched with Cook on the fly

UE - Rendering Architecture - Shaders - Nov 8, 2021

This issue seems to occur when using Cook on the fly on a Material that is branched on the Static switch. This issue also seems to occur on the console. Regression = Yes, issue is not reproduced // ...

AnimBP instance is leaked when using linked animation graphs with 3 or more hierarchies

UE - Anim - Runtime - Sep 5, 2022

When creating an AnimBP with 3 or more layers using linked AnimGraph nodes and going through a state where animation is initialized such as replacing SekeltalMesh, the AnimBP on the 3rd layer is not ...

AnimDrawDebug does not work if using RootMotion from Everything

UE - Anim - Gameplay - Feb 14, 2023

Debug drawing with AnimDarwDebug~ does not work when RootMotionMode is set to "RootMotion from Everything". In addition, the same issue occurs when MultiThread of Animation is turned off. Licensee ...

XR Planar Reflections lag behind VR headset movement

UE - Platform - XR - Mar 24, 2023

Planar Reflections lag behind VR headset movement [Link Removed] Reporting that reflection captures lag because they happen before late update is applied. Includes an experimental patch that fi ...

Auto Exposure Compensation Curve issue when switching from Manual to Histogram

UE - Rendering Architecture - Feb 21, 2024

When switching the Camera's Exposure Metering Mode from Manual toHistogram, the exposure level resets and takes time to settle. The Licensee has a proposed code change that would fix this issue. Als ...