Setting PHYSX_MEMORY_STATS to 1 prevents the Engine from being built successfully.

UE - Simulation - Physics - Mar 9, 2015

If #define PHYSX_MEMORY_STATS 0 is set to 1, the Engine will not build successfully. The build fails with the message: error C2338: FPhysXAllocationHeader size must be less than 16 bytes. ...

Blueprint icon flashes when hovered over

UE - Editor - Content Pipeline - Content Browser - Mar 24, 2015

Blueprint icon flashes constantly when mouse is hovering over it; this only occurs with a specific type of blueprint class. . Branch: Binary, from Launcher . Build Version: 4.7.3 . Description: T ...

Nodes unavailable branching off Get Player Controller Unless Context Sensitive is unchecked

UE - Gameplay - Blueprint - Oct 23, 2014

In a project in UE4.5, when opening an animation blueprint, in the Event Graph when the player branches off the "Get Player Controller" node to search for "Get Mouse Position" it will not be shown i ...

.ini files for packaged games have their settings wiped clean every time the game is run.

The settings .ini files for games packaged for windows appear to be getting overwritten with blank files whenever the game is run. Even if settings are added to the .ini files manually, the files be ...

User crashes during play/save/open project in UE 4.6.1

UE - Gameplay - Blueprint - Feb 25, 2015

User reports crashing upon open, saving or playing their project in 4.6.1 in Binary. Assertion failed: TargetDelegate [Link Removed] [Line: 5407] ...

Investigate code in SViewport.cpp that makes use of TWeakPtr's to see if it can be altered to better protect against a possible crash.

Tools - Aug 31, 2015

A user reported a one-time crash that possibly occurred when a TWeakPtr became invalid immediately after passing an IsValid check, before the TWeakPtr could be used. The SViewport.cpp file contains ...

Errors when reorganizing marketplace assets into a project hierarchy

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

When adding assets to your projects from the vault, moving the new assets to new sub folders will cause issues when trying to delete the folders from the content browser. ...

Ignoring pawn collision makes it ignore mesh

UE - Gameplay - Jun 25, 2015

When ignoring the pawn capsule on a character, yet having collision on the mesh, you still fall through the world because it ignores the mesh collision settings. From User: It seems to be infuriati ...

Copying Blueprints folder within the Content Browser is not working properly

UE - Editor - Content Pipeline - Content Browser - Mar 11, 2015

When dragging and dropping the Blueprints folder into another folder, and selecting 'copy here' causes the Blueprints folder to stay as a folder and empty, but another Blueprints folder is created w ...

Any Alpha value set in a FLinearColor used to draw a line on a Canvas HUD is ignored when the line is drawn

UE - Graphics Features - Apr 21, 2015

If an Alpha value is set in a FLinearColor that is used to draw a line on a Canvas HUD, the Alpha value is ignored when the line is drawn. A comment in BatchedElements.cpp indicates that some legac ...