Unreal Engine Issues
Unreal Engine Issues
Normal are different after Merge Actor on scaled objects
OLD - Anim - Feb 8, 2018Normal are different after Merge Actor on scaled objects. If the actors aren't scaled, the issue doesn't seem to occur. A licensee is trying to use the Merge Actor tool to optimize their entire pro ...
Sequencer: Shot Comprised of Several Shots Set to "Evaluate Subsequences in Isolation" Timeline Does Not Scrub
UE - Anim - Sequencer - Apr 24, 2018When opening NewLevelSequence, opening shot0010_001, changing the playback settings to Evaluate Subsequence in Isolation, switching back to NewLevelSequence, opening shot0020_001, and scrubbing, ani ...
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 ...
Movement Tolerance for Spawn Per Unit Does Not Function
UE - Niagara - Oct 19, 2018Motion tolerance for Spawn Per Unit does not affect the particle system. Even if the vaules are set very high. Found in 4.18 CL# 3832480, 4.19 CL# 4033788, 4.20 CL# 4369336, 4.21 Preview 2 CL# 4472 ...
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 ...
Massive FPS drops in editor when moving mouse over menu items on Linux
UE - Platform - Linux - Apr 22, 2019Navigating various dropdown menus in the Editor causes the FPS to drop down to around 25 or 10 in the Viewport on an empty project. This does not reproduce on Windows with -vulkan This issues was ...
Child Blueprint components become broken in sequencer when "Run Construction Script in Sequencer" is checked
UE - Anim - Sequencer - Oct 15, 2019When enabling "Run Construction Script in Sequencer" on a Blueprint Child Actor and having "Rerun Construction Scripts" turned on in Sequencer, the Child BP's properties become inaccessible in Seque ...
Creating a new user defined struct with the same name as a native declared struct crashes the editor (e.g., "MyStruct" which already exists for some reason)
UE - Gameplay - Blueprint Editor - Mar 31, 2020Error message:Fatal error: [File:G:/UE4/Projekte/4.25/Engine/Source/Runtime/CoreUObject/Private/UObject/Class.cpp] [Line: 2503] Couldn't bind to native struct STRUCT_REINST_MyStruct_0. Headers nee ...
Ray traced shadow sample settings greater than 1 cause shadow artifacts
UE - Graphics Features - Lumen - Sep 23, 2020Alternative you can follow these steps to reproduce 1. Create a new project with ray tracing enabled 2. Activate the groom plugins 3. Import a groom asset into the scene 4. Add any light type to the ...