Unreal Engine Issues
Unreal Engine Issues
Root motion can accumulate large force until finally extracted
UE - Gameplay - Player Movement - Jan 19, 2018Root motion can accumulate in some cases and then apply a huge force when it ends. See https://udn.unrealengine.com/questions/411340/root-motion-accumulated-while-unused.html ...
Vertex Snapping when moving StaticMesh Pivot has regressed
Tools - Oct 25, 2019Related UDNs:https://answers.unrealengine.com/questions/597988/vertex-snapping-static-meshes-to-one-another.html (2017) [Link Removed] (2015) ...
[Feature Request] Support Lighting Channels for Skylights
UE - Graphics Features - Apr 27, 2018Lighting channels for skylights would help for streaming levels that include both outdoor and indoor environments. https://forums.unrealengine.com/development-discussion/rendering/78203-lighting-ch ...
Instanced object properties get cleared when compiling some (all?) types of Blueprints (Actor components and user widgets at least)
UE - Gameplay - Components - Oct 7, 2015If an ActorComponent contains a UObject property of a type that is DefaultToInstanced, any time a Blueprint of a class containing that ActorComponent is compiled the UObject value is reset to None. ...
CPU Particles spawned through Blueprints do not keep Collision
UE - Graphics Features - Nov 5, 2014Particle Systems spawned via a blueprint are not generating collision. The same system will generate collision if placed directly in level. Also reported: https://answers.unrealengine.com/questio ...
LuaScriptCodeGenerator calls private FColor constructor
UE - Foundation - Core - May 24, 2016LuaScriptCodeGenerator.cpp line 82 (https://github.com/EpicGames/UnrealEngine/blob/4.11/Engine/Plugins/ScriptPlugin/Source/ScriptGeneratorPlugin/Private/LuaScriptCodeGenerator.cpp#L82) sets a FStrin ...
Triggerbox volume incorrectly forces physics objects to act at rest
UE - Simulation - Physics - Apr 9, 2016If a phsyics actor set to start awake is placed at the top of a trigger box, it will remain at rest. Regression? (No), issue (does) occur on 4.10.4 ...
Support for import/reimport of mesh LODs is unavailable in Blueprint and python
UE - Editor - Content Pipeline - Import and Export - Mar 31, 2020The missing API prevent clients to do good scripted import pipeline tools. there is two UDN thread that can be solve by this JIRA https://udn.unrealengine.com/questions/566538/how-to-add-a-custom- ...
[Feature Request] Mouse-wheel zoom logic seems incorrect in UI Designer
UE - Editor - UI Systems - Jan 7, 2019When using the mouse wheel to zoom the Designer view, the behavior is not intuitive. (ZoomLogicDesigner.gif) in the Designer view, place the mouse near the top left corner. Use the mouse wheel to ...
Screen Aligned UVs Don't Scale With Aspect Ratio Correctly
UE - Graphics Features - Nov 9, 2016When using screen aligned UVs they don't seem to account for letterboxing. When the aspect ratio is changed the UVs scale based off the top left of the window or screen and not the viewable area. ...