Cannot navigate to native function source code from blueprint editor

UE - Foundation - Core - Feb 1, 2020

REGRESSION RANGE WORKING: 9404494 (right before Dev-Core copy up at 9405827 BROKEN: 9407021 (Dev-Networking copy up) NavigateToFunctionSource: Unable to find symbols for 'UPaperFlipbook::GetNumFr ...

EditCondition doesn't work on C-arrays

Tools - May 13, 2020

Toggling a bool doesn't enable/disable the elements of the array similarly to how it does for TArray in the details panel. Static arrays should have the same semantics as TArray with regards to edit ...

Crash compiling Widget Blueprints that contain Dynamic Entry Boxes with their Entry Widget Class set to each other

UE - Editor - UI Systems - Jun 10, 2020

Currently the Dynamic Entry Box has no protection against recursion, leading to a stack overflow and a crash. This issue was reported and tested in 4.25 (CL-13144385). This was reproduced in 4.24.3 ...

Text3d renders backwards.

UE - Rendering Architecture - RHI - Aug 10, 2020

When adding a Text3D actor (after placed as Child Component), into viewport the actor renders backward and not as expected. I was able to reproduce this issue in 4.25.3, but did not have this issue ...

Crash enabling Stochastic Rect Light with Ray Tracing

UE - Graphics Features - Lumen - Oct 13, 2020

Enabling Stochastic Rect Lights with Ray Tracing causes the project to crash. Reported and tested in version 4.26.0(CL 14419252). Tested and not found in version 4.25.3(CL 13942748).  ...

Skeletal mesh reduction - Material settings are lost when regenerating the LOD in a mesh with a reduced material section

UE - World Creation - Worldbuilding Tools - HLOD - Nov 25, 2020

Following code fixes this issue in FQuadricSkeletalMeshReduction::ReduceSkeletalMesh Section.ChunkedParentSectionIndex = bIsChunkedSection ? CurrentParentSectionIndex : INDEX_NONE; // ...

Ray Traced Shadows ignore mesh occlusion on water when enabled

UE - Graphics Features - Ray Tracing - Apr 25, 2024

A forum user reported an issue where object geometry occlusion would be missing when Ray Traced shadows were enabled. I was able to reproduce the issue internally where occlusion seems to be missing ...

All objects imported through Interchange use smooth shading.

TM - Interoperability - Dec 7, 2023

[Image Removed] It imports correctly in UE with interchange import:[Image Removed] ...

Building lighting fails on Linux without Internet connection

UE - Platform - Linux - Jul 6, 2015

Attempting to build lighting will stay at 0% and eventually fail if there is not internet connection for the computer. ...