Illegal Else Without Matching If

UE - Simulation - Physics - Feb 3, 2017

Looks like there's a missing if/else pair in BodyInstance.cpp ...

Particle record in the Matinee leads to crash when playing after record.

Tools - Oct 19, 2017

Particle record feature in the matinee seems not properly working in the Editor. When trying to play in the matinee with recorded keys, the Engine will crash with Access violation - code c0000005. ...

Control Rig - Undo doesn't function correctly with proxy and multi bone controls

UE - Anim - Rigging - Control Rig - Oct 26, 2025

Issue from my Technical Animator where the undo operation in Control Rig doesn't work as expected on Proxy Controls. He has recreated the issue using the "Control Rig Samples Pack" and recorded a vi ...

Adding to Struct causes 'Inappropriate Outermost' warnings

UE - Gameplay - Blueprint - Jun 2, 2015

Adding to Struct causes 'Inappropriate Outermost' warnings to be spammed to the Output Log ...

Changing code based component category causes component to become ineditable in blueprints

UE - Gameplay - Blueprint - Mar 27, 2015

When a component written in code has it's category setting changed in blueprint the rest of the details for that component will not be editable once the component is deselected and reselected. ...

Changes in Scale are not replicated on the Client through RPCs

UE - Networking - Apr 27, 2015

Changes in Scale are not replicated on the Client through RPCs. Location and Rotation are replicated as expected. Reproduced in 4.7.6 binary and Main (//depot/UE4/Promotable-CL-2522625) ...

Steam friends list is duplicated when opened for a second time in the packaged version of Shooter Game

UE - Networking - Jun 29, 2015

If a user is logged into a Steam account with between 1 and ~10 friends (Max depends on resolution, as it'll push the excess off the screen) and they open the friends list multiple times, it'll dupl ...

Override Attenuation Can't be Unchecked When Audio Component Added to Blueprint and Blueprint Attached to Actor

UE - Audio - Dec 20, 2017

Checking Override Attenuation in Details <  Audio Component < Attenuation disables settings that further adjust the Attenuation. Such as: Attenuation Air Absorption, Attenuation Listener Focus, Atte ...

naming box collision in player character renames overlap begin event in actor calling player character

UE - Gameplay - Blueprint - Jan 28, 2016

naming box collision in player character renames overlap begin event in actor calling player character ...

Child Actor Component Not Destroyed When Parent BP Is Replaced in Scene

UE - Gameplay - Blueprint - Oct 16, 2015

Having an actor in the level with a child actor component, replacing it with another copy of itself, and deleting the copy results in a Child Actor remaining in the world outliner, which cannot be d ...