Enabling "Support Deferred Rendering with Metal" Crashes on IOS device

UE - Platform - Mobile - Feb 8, 2017

After enabling "Support Deferred Rendering with Metal" and then launching to an IOS device (in this case iphone 6+) the game will no longer open and run. REGRESSION? Yes Worked in Binary 4.13.2 C ...

Map load stalls in texture streaming code

UE - Graphics Features - Jun 13, 2017

A change was made to AActor.GetComponents which appends the results instead of resetting the output array. This seems to only impact 2 places in the code, and has a big side effect in the texture st ...

[AI] Nav Modifier Volume inside of a Level Instance does not update navmesh when moved

UE - AI - Navigation - Oct 3, 2023

The issue is seen when using a normal navmesh inside of a World Partitioned level. Adding a Nav Modifier Volume to a Level Instance, and placing the Level Instance in the world will affect the navme ...

Soft Object unloads after some time when stored in a Blackboard

UE - AI - Mar 11, 2020

When loading a Soft Object and directly placing the loaded Object into a Blackboard, after about 2 minutes the Object will unload and become null inside the Blackboard. This issue only occurs in a p ...

BSP brushes get Clipped or Disappear relative to the Surface Normals of a nearby Brush when Deleting/Flipping Faces

UE - LD & Modeling - Modeling Tools - BSP - May 1, 2017

While testing this issue it was interesting to discover how the surrounding BSP's were affected. They seemed to clip/disappear according to the surface normals of the deleted brushes. There is a si ...

Game window renders transparent when launched with -game -log commands on Mac

UE - Platform - Apple - Oct 31, 2016

This is only occurring on Mac and only in OSX 10.12. This is also a regression from 4.13 Right clicking in the dock, Show all windows, and selecting the game window does NOT fix the issue. Runnin ...

Incorrect config property serialization for UStructs used as TMap keys or contained in a TSet with a single value. Diffs taken from default-value of each member type, instead of from default-value of the struct

UE - CoreTech - Nov 18, 2024

Consider a UStruct with some basic type members, each one with a default value specified in the struct. Also consider a TSet or TMap with that struct as keys, used inside a UObject as a UProperty an ...

Investigate crash with replication nested ever changing attachments

UE - Networking - May 7, 2024

There seems to be an issue with replicated attachments ending up causing cyclical setups resulting in crash on clients. It was reported for 5.2 but even after patching up code it seems to occur. ...

Input Action Events are not included in the list of overrideable functions in the My Blueprints tab

UE - Gameplay - Blueprint - Feb 5, 2016

Input Action Events are not included in the list of overrideable functions in the My Blueprints tab. Reproduced in Actor Blueprints and Player Controller Blueprints. This is a regression: overridin ...

Html5 packaging fails on Windows if the user has HOME env var

UE - Platform - Mobile - Oct 3, 2016

If user has HOME env var, Html5 packaging creates .emscripten folder within the location specified by HOME, not the expected intermediate location(like C:\Program Files\Epic Games\4.13\Engine\Interm ...