Incorrect collision of merged actor that was merged from a Spline Mesh Component

UE - Simulation - Physics - Apr 10, 2017

Incorrect collision of merged actor that was merged from a Spline Mesh Component Licensee description: We often use spline mesh blueprints to generate organic art for us, like roots, trees, and r ...

Engine Crashes When Previewing ES3_1 With Material Using World Position Offset (Need Custom Stencil)

UE - Platform - Mobile - Feb 15, 2017

This crash will only occur when this criteria is met.You have enabled custom depth with stencils in the project settingsA mesh in the scene is rendering to custom depth with a stencil value of 1The ...

Doing a Rebuild in Visual Studio fails to compile

UE - Foundation - Cpp Tools - UnrealBuildTool - Apr 19, 2016

Attempting to use the Rebuild option in Visual Studio will fail to build the project. It instead produces a message that "Epic was unexpected". ...

Actor attached to other actor in LevelInstance has very large bounds

UE - World Creation - Worldbuilding Tools - Level Instances - May 26, 2023

Attached actors do not return to LevelInstance space at the end of LevelInstance editing, and bounds contains level instance offset location. This results in huge bounds. My workaround is:  void FL ...

OnClicked events do not trigger on objects 100k units away from camera

UE - Gameplay - Mar 26, 2015

Objects that are 100k uu+ away from camera do not trigger "OnClicked" events ...

[AI] Fill Collision Underneath for Navmesh does not work for ISM instances

UE - AI - Navigation - Sep 29, 2023

Although the ISM component allows for enabling the flag for Fill Collision Underneath for Navmesh, it does not add the modifier for this to the navigation data for its instances.  ...

Incorrect number of parameters in empty Shipping version of the DrawDebugString() function signature

UE - Foundation - Core - Mar 26, 2019

The DrawDebugString() function has to versions. One is the actual function to display a string of debug text in non-Shipping builds, and the other is an empty function that is used in Shipping build ...

[Sound Cue][Blueprint API] - Setting a parameter value a second times does not work

UE - Audio - Apr 9, 2022

Setting a parameter on a Sound Cue from Blueprints more than once is not working. The first time a parameter is set works, but any following sets are ignored. This is a regression and does not occu ...

Crash when renaming assets from the Persona asset browser

Tools - Mar 3, 2015

Crash when renaming assets from the Persona asset browser [Link Removed] [Link Removed] LOG IS ATTACHED ...