Root 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 ...
Related UDNs:https://answers.unrealengine.com/questions/597988/vertex-snapping-static-meshes-to-one-another.html (2017) [Link Removed] (2015) ...
Lighting 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 ...
When import .paper2dsprites file, always output warning log. It seems missmatch URL TexturePackerPrefix and AppName with metadata. - PaperJsonSpriteSheetImporter.cpp const FString TexturePacke ...
Particle 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 ...
Some properties go missing when the Editor is switched to Japanese mode. Specifically, missing under Collison: -Simulation Generates Hit Events -Phys Material Override -Use CCD (See attached screens ...
LuaScriptCodeGenerator.cpp line 82 (https://github.com/EpicGames/UnrealEngine/blob/4.11/Engine/Plugins/ScriptPlugin/Source/ScriptGeneratorPlugin/Private/LuaScriptCodeGenerator.cpp#L82) sets a FStrin ...
The 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- ...
2 GB/hr Memory Leak on maps with no Sky Sphere or Atmospheric Fog to occlude empty space. The leak also occurs during general usage, but was tested with a blank project and an absolutely blank leve ...
Renaming an animNotify in the Animation Notifies window (Window>Animation Notifies) does not redirect existing event nodes to the new name. It also doesn't appear under the Right Click menu in the ...