Unreal Engine Issues
Unreal Engine Issues
Select All Descendants in World Outliner Does Not Highlight Everything Selected in Sub Folders
Tools - Sep 7, 2018Selecting all descendants of a folder hierarchy in the world outliner doesnt accurately show what all is selected. This does not always occur and is a visual bug. The items in the level are still se ...
FTransform(ENoInit) ensures in Debug on mobile platforms
UE - Foundation - Core - Sep 25, 2018As of 4.20, ENABLE_NAN_DIAGNOSTIC is now enabled in all Debug configurations. However, this does not work well with the TransformNonVectorized that is used on platforms like android. If this combina ...
Hot Reload fails when project code class that derives from a plugin code class is modified
UE - Foundation - Cpp Tools - Hot Reload - Oct 11, 2018Hot Reloading fails in 4.21 if a project code class that derives from a plugin code class is modified. The Editor appears to be looking for a corresponding Hot Reload .dll for the plugin, even thoug ...
Navigation obstacles remain when turning off bCanEverAffectNavigation in Blueprint actor
UE - AI - Nov 30, 2018Editing the bCanEverAffectNavigation flag on an Actor Blueprint is propagating the value of the property to the Blueprint instance, but fails to properly update the navmesh according to the new valu ...
Navigation Mesh ignores Hierarchical Instanced Static Meshes using "Build Paths" or the "Build" Button
UE - AI - Feb 1, 2019Hierarchical Instanced Static Meshes are partially ignored after building the navigation mesh. This is causing the navmesh to be generated within all or part the HISM instead of around it. This ...
"Build" button causes "Validation failed" and breaks references of meshes in Sublevel according to a prescribed procedure
UE - LD & Modeling - Modeling Tools - BSP - Feb 9, 2019A licensee reported that "Build" button causes "Validation failed" and breaks meshes in a Sublevel according to a prescribed procedure. The process is quite complicated, but I can 100% reproduce thi ...
Frustum Culled Landscape Components Not Casting Shadows
UE - Graphics Features - Mar 5, 2019Frustum culled landscape components stop casting shadows resulting in the shadows disappearing near the edges of the camera in square sections. Unable to test in 4.20 or 4.21 as provided project wa ...
Landscape Far Shadows Interfere With Distance Field Soft Shadows
UE - Graphics Features - Mar 5, 2019Landscape far shadows are interfering with the distance field soft shadows causing a conflict, and stopping the distance field soft shadows from rendering at all. Working as expected in 4.20 CL# 43 ...
Blueprint Editor Show Grid does not toggle the grid in the viewport
UE - Editor - Workflow Systems - Oct 28, 2020The grid in the blueprint editor is not able to be hidden via the Show Grid flag in the viewport dropdown. This has regressed sometime in //Ue4/Release-4.25 as I cannot reproduce this issue in //UE4 ...
3D Grass may not appear in Path Tracer renders
TM - Rendering - Sep 19, 2025Reported in SF [Link Removed] Path Tracer renders of images with 3D grass may not display 3D grass in the foreground of an image. The 3D grass material will not appear or may appear to cut off at s ...