Playing audio files in Editor doesn't work when Magic Leap Zero Iteration is enabled

UE - Platform - XR - Jun 14, 2020

When the "Enable Zero Iteration" and "Use ML Audio for Zero Iteration" settings are both checked, the audio doesn't play inside Unreal Editor. This happens in the following cases:Playing an audio fi ...

Destruction mesh with Crumble Smallest and Impact near another will leave residual mesh visible

UE - Simulation - Physics - Destruction - Jan 28, 2015

When using a DM that has Crumble Smallest and Impact damage enabled there will be instances where the residual mesh before fracture is left behind. What appears to happen is there is a force large e ...

Child Actor Component Actor Duplicates and Persists After Play

UE - Gameplay - Sep 26, 2019

When an actor spawns another actor using AddChildActorComponent that comes alphabetically before it based on blueprint name it will spawn an extra actor that will persist when the scene is stopped d ...

UMG ListView doesn't propagate OnItemSelectionChanged events to its items

UE - Editor - UI Systems - Aug 21, 2018

"When using a UMG ListView widget, there seems to be two ways to be notified of item selection changes. An event on ListView which fires when the selection state of any item changes, and an event on ...

Camera Movement is laggy while the mouse button is held down and ShowMouseCursor is enabled if there are AI moving

UE - Gameplay - Dec 15, 2015

Camera Movement is laggy while the mouse button is held down and ShowMouseCursor is enabled if there are AI moving. Stat Scene Rendering didn't show any jumps while moving the camera under these cir ...

The AngularLimit visualizer isn't displayed as expected when adjusting the AngularRotationOffset

UE - Simulation - Physics - Dec 9, 2016

The AngularLimit visualizer isn't displayed as expected when adjusting the AngularRotationOffset. You can manually rotate the PhysicsConstraint and it will rotate the AngularLimit visualizer, howe ...

Scaling snap for selected object are reset to the origin of the scale pivot location

Tools - Apr 27, 2016

When scaling multiple selected actors in the scene with snap enabled the actors will reposition to the pivot origin of the last selected actor in the group when going down to a value of 0 or a negat ...

PhysX Crash when spawning Instanced Static Mesh actors at Runtime

UE - Simulation - Physics - Destruction - Oct 13, 2015

Bug generated from crash reporter. This crash has been found in 4.7.6 and still occurs in 4.8.3 and 4.9.2 to users. One user in particular still, and he experiences it often. I have not been able ...

Stationary/Movable Lights render based on distance from World Origin in Orthographic Camera View

UE - Graphics Features - May 20, 2016

When using the Orthographic Camera view (such as that used with the Paper2D Template) any lights that are distant from the world origin will start to fade out as if they are being culled. The distan ...

AMD GPU crash with "Video memory has been exhausted" error when increasing the World Partition world and using Water Body Ocean

UE - Graphics Tools - Terrain - Landscape - Dec 8, 2022

Current steps describe the problem related to "Video memory has been exhausted (#### MB over budget). Expect extremely poor performance" on the AMD video card. In this case, the steps cause the GPU ...