Navmesh does not update properly on loaded BSP

UE - AI - Oct 20, 2014

If a user removes a wall or box from the top down project base level, the navmesh will not update appropriately, creating a wall that the user will not be able to pass on PIE. Additional Note: Thi ...

Editor is crashing on Startup after opening a copy of older project

UE - Foundation - Core - Jan 16, 2015

Edit: Looks like failing to read the DDC when compiling global shaders User is getting a crash when they are attempting to open a copy of their project from version 4.4.3. Attached CrashLogs, DXd ...

LIVE: LANDSCAPE: Lock Movement feature does not save state after re-opening editor

UE - LD & Modeling - Terrain - Landscape - Oct 16, 2014

Lock movement state on landscape does not save state on reloading editor. ...

Editor slows exponentially when selecting an instanced static mesh in viewport that has a large number of instances

Tools - Jan 19, 2015

Editor slows down exponentially when spawning in a large quantity of instanced meshes. ...

Start up movies will only play for a second or two and then the level will load.

UE - Platform - Mobile - Oct 27, 2014

If you place a mp4 file into the startup movies section of the Project Settings, the movie will only play for a brief time before the level loads. If you play the play the level with the startup m ...

Get and Set nodes for variables from a BP's parent class will not compile without a reference to Self (4.8)

UE - Gameplay - Blueprint - Jan 20, 2015

Get and Set nodes for variables from a BP's parent class will not compile without a reference to Self. Without one, the BP fails to compile with the following error: "Error Variable node Get NewVa ...

Sprites don't initialize PixelsPerUnrealUnit in cooked builds, causing invalid values for GetSocketLocation, etc... for assets that have Pixels/uu of 2.56

UE - Gameplay - Paper2D - Jan 20, 2015

In this user's project, playing in Launched or Packaged games causes the Get Socket Location to return an unusual report when used during a flipbook animation. Instead of a normal vector, the Print ...

Thumbnails for child blueprint are not updated after changing a component in child blueprint

UE - Editor - Content Pipeline - Content Browser - Jan 21, 2015

Thumbnails for child blueprint are not updated after changing a component in child blueprint ...

Clean up NaN checks in CharacterMovementComponent

UE - Gameplay - Player Movement - Mar 1, 2016

Some old NaN checks in character movement use checkf() which will crash, those should be ensures. Other code is inconsistent in using either ENABLE_NAN_DIAGNOSTIC (with side effects), and some users ...

Composite font uses a sub-font, even when the sub-font doesn't support the character

Tools - Apr 7, 2016

I have a fix for this shelved in CL# 2937344, so it would be good to get it into 4.12 once the user verifies the fix. ...