Sequence onStop does not appear to fire off in a packaged project

UE - Anim - Sequencer - Nov 9, 2016

Sequence onStop does not appear to fire off in a packaged project. The functionality appears to be present in the editor, however this does not appear to be the case after packaging. ...

Crash when adding a Material Layer with a MaterialFunctionCall node to a Material Instance

UE - Graphics Features - Mar 30, 2021

Adding a Material Layer to a Material Instance that has a Material Function Call node connected to the Set Material Attributes node causes the editor to crash. I tested a Material Layer without the ...

FLightMap2D::Serialize() contains a possible index out of range error.

UE - Graphics Features - Dec 30, 2014

A user pointed out a potential to have an index out of range error in the source code. There are also a few magic numbers scattered around in this function. ...

EngineSubsystem Deinitialize is not being called

Tools - Jan 24, 2020

UEngineSubsystem::Deinitialize() is not called when closing the editor In addition, (tested only with released 4.24.1)  when recompiling a module using the "Modules" window in the editor the d ...

Make Tile Map Editable causes Crash on Mobile

UE - Gameplay - Paper2D - Oct 28, 2016

A crash occurs when using the Make Tile Map Editable function with blueprints when deployed to a mobile device. I can confirm this crash does not occur if you remove the function from the level blue ...

Crash removing a split parameter pin that is linked

UE - Gameplay - Blueprint Editor - Jun 13, 2017

Crash occurs if the user splits an Output Parameter on a function, then links one of the pins, and then removes the parameter entirely. I could not reproduce this in Main. ...

No mouse decorator when dragging Event Dispatcher from My Blueprint panel

UE - Gameplay - Blueprint - May 20, 2015

Currently there is no mouse decorator when dragging event dispatchers out of the My Blueprints panel in the Blueprint editor. This contradicts the functionality of drag-and-dropping variables, func ...

Possible memory leak in FVertexFactoryData's ClothVertexFactories

UE - Simulation - Physics - Character - Oct 28, 2015

Developer implemented their own marker system with callstack data in their own custom version of malloc/realloc/free, and they reported that there might be a memory leak in the ClothVertexFactories ...

SphereCast_GlobalDistanceField does not compile

UE - Niagara - Mar 3, 2021

The sphere cast module has some custom HLSL that calls QueryMeshDistanceFieldGPU, the signature for the function changed, but the HLSL wasn't updated to match so it fails to compile.  ...

TRACKS: Icons occluded when track/actor name is longer than the panel

UE - Anim - Sequencer - Feb 11, 2016

Icons are being occluded when you shrink the actor panel in Sequencer. The expected behavior from the rest of the editor is to prioritize the functional UI elements [Image Removed] ...