WorldContextObject is null in BP function library

UE - Gameplay - Blueprint Compiler - Aug 15, 2017

Warning in Github UE4 solution in Visual Studio

UE - Platform - Mobile - Aug 10, 2016

Warnings in the Github UE4 Solution: There was a mismatch between the processor architecture of the project being built "MSIL" and the processor architecture of the reference "D:\Downloads\UnrealEn ...

World Delta seconds appears to Cause a miss calculation (regression 4.12.3 -> 4.12.4)

UE - Gameplay - Jul 1, 2016

If the user uses world delta seconds in a calculation there appears to be some incorrect values. Note there is also a users project attached if you would like to look at that example. ...

Stereo layer appears to move when used with the Oculus Rift

UE - Platform - XR - May 17, 2018

Stereo layer appears to move/slide as the player moves the HMD from side to side when using the world locked setting for the stereo layer. ...

Crash on startup with a Blueprint deriving from an abstract class with a SpriteComponent

Tools - Feb 7, 2018

Appears to be an issue with load order and the timing of when we populate the 'ShowSpriteCommands' and 'SpriteIDToIndexMap' containers, which we assert on if they're not the same size. The original ...

Feature Request: Make WASD movement cancel out movement when you press keys in opposite directions

UE - Gameplay - Input - Feb 3, 2023

slack discussion: [Link Removed] ...

Post Process Effect Screen Percentage Not Functioning

UE - Graphics Features - Mar 18, 2015

The Post Process setting "Screen Percentage" does not seem to work at all. After looking at the example provided in the documentation highlighting the Content Examples map with this feature, I was ...

Blocking Volume Not Displaying Properly in Player Collision Mode

Tools - Oct 17, 2016

The licensee has stated that convex mesh generation is failing in KAggregateGeom.cpp from the function KConvexElem::HullFromPlanes. Here is the code snippet they provided: if(!Polygon.Split(-FVecto ...

AddComponent node doesn't work correctly with macro libraries

UE - Gameplay - Blueprint Compiler - Apr 25, 2023

This is a unique problem with macro libraries and the AddComponent node. It would appear that the issue has to do with the MakeNewComponentTemplateName function that we use when we create these func ...

GetActorsPerception useless in 4.7

UE - AI - Mar 11, 2015

The new AI Perception system's BP API, marketed in release notes, depends on UAIPerceptionComponent::GetActorsPerception, that, as one AnswerHub user points out, is useless due to a buggy condition ...