Input pins of BP node are not updated after a hot reload

UE - Gameplay - Blueprint - Apr 17, 2015

If a code defined function that takes in a parameter is called from blueprints, the BP node will show the input pin for the parameter. If the parameter list is changed after the node is created and ...

Construction script on child actor components not respected in PIE

UE - Gameplay - Blueprint - Jan 14, 2016

Child Actor Components run their construction scripts upon parent's placement in level. However, these specifications are not maintained once PIE is initiated. ...

Child actor component mesh actor does not update transform with child actor component in parent blueprint

UE - Gameplay - Oct 22, 2015

if a child actor component is set to a new child actor at runtime, the actor will not update with the transform of the child actor component in the parent blueprint. ...

The Spawn Actor from Class node outputs an Actor reference when a Select node is attached to the Class input, even if both options are of the same child type

UE - Gameplay - Blueprint - Jun 18, 2015

The Spawn Actor from Class node outputs an Actor reference when a Select node is attached to the Class input, even if both options are of the same child type. For example, if two Characters are the ...

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 ...

Creating a Blueprint out of existing Blueprints removes all assigned Static Meshes from components

UE - Gameplay - Blueprint - Aug 11, 2015

Creating a Blueprint out of existing Blueprints removes all assigned Static Meshes from components. Reproduced in 4.8.3 binary, 4.9 Releases (//depot/UE4-Releases/4.9/Promotable-CL-2650750), and Ma ...

Editor Preferences 'Enable Sound' option causes Real Time Audio to Stop Working after PIE

UE - Audio - Sep 28, 2016

Real Time Audio stops playing sounds after exiting PIE with the 'Enable Sound' option disabled. The tooltip states, "Whether to play sounds while in a Play in Editor session." This setting does no ...

Save on Compile "On Success Only" Does not save on Successful Compiles with Warnings

UE - Gameplay - Blueprint - Aug 6, 2015

The option to save on Compile "On Success Only" does not save on successful compiles that contain warnings. If this is intended, then to avoid confusion, the tool tip should specifiy that "Blueprin ...

Cannot watch values inside of a function in blueprints

UE - Gameplay - Blueprint - Sep 8, 2015

Values are never considered in scope when a variable is watched within a custom function, even though "watch this value" is available for use. ...

Physics not reacting correctly with physical material if velocity is not high enough

UE - Simulation - Physics - Feb 3, 2015

There are issues with the way Physics is being handled with physical materials. Having a physical material setup with a restitution of 1 and a high max depenetration value will result in no bounce. ...