"DefaultToSelf" pin ignores parameter type

UE - Gameplay - Blueprint - Mar 5, 2015

A user reported an issue resulting in a crash with callstack pasted below. After a brief investigation I've found that user was able to successfully compile a blueprint where a function taking an ...

Subcomponents of classes do not show up in BP hierarchy

UE - Gameplay - Blueprint - May 8, 2015

If a custom component creates another component in code, the second component does not appear in the hierarchy inside the blueprint menu. It does appear in the hierarchy for an instanced version of ...

Mouse position no longer updates after clicking and holding on a button

UE - Editor - UI Systems - Jan 19, 2015

If the user clicks a button and does not release the mouse button, the mouse position will no longer update until the user releases the mouse button that is being held down. This could cause issues ...

API version is incorrect for licensee versions

UE - Foundation - Core - Jun 26, 2015

Reported by a licensee: We currently force the MODULE_API_VERSION to be the same as our release of 4.8.0, even if licensees are using a custom version scheme. This can cause content that will refus ...

SVN SASL binaries may be causing crashes for some users

Tools - Feb 21, 2017

Some users are reporting crashes when attempting to connect to SVN after upgrading to 4.15. The only relevant change to SVN was the update of the 1.9 binaries to support SASL, so it's possible that ...

Unconverted BP function library does not assign output parameters after function call in a nativized build.

UE - Gameplay - Blueprint - May 31, 2018

Stub functions generated for unconverted assets as dependencies of nativized assets do not properly handle output parameters (the result is not assigned after the ProcessEvent() call). Suggested fi ...

bDisableExposure Exposure bias on Mobile

UE - Platform - Mobile - Oct 12, 2018

There is this new variable. bDisableExposure which is set true when Feature level isn't SM5. Exposure bias should be supported on other platforms too. PR: https://github.com/EpicGames/UnrealEngine/ ...

[AI] Editor crash when moving BT nodes if the BB has a BlackboardKeyType_Object with a null BaseClass

UE - AI - BehaviorTree - Feb 28, 2023

The editor crashes if a BT is changed while its Blackboard has an Object type key with its BaseClass set to None (null). There is no warning or log alerting the user that setting the BaseClass to No ...

Crash when after playing media that requires a different conversion shader

Media Framework - Sep 24, 2016

The pixel format conversion code in MediaTextureResource is currently reusing the global bound shader state for different pixel shaders. This is not supported. There needs to be one shader state per ...

Binary-only plugins are not usable without including .build.cs files

UE - Foundation - Cpp Tools - UnrealBuildTool - Jan 22, 2015

We should support not having a source directory at all, unless the plugin needs to be linked against. Related to [Link Removed]. See also: https://forums.unrealengine.com/showthread.php?53710-Prebu ...