Startup Movies Fail to Play when Audio Devices are Disabled

Tools - Feb 1, 2016

If a user launches a project in Standalone mode and has a Startup movie while the audio devices on the computer are disabled, the movie will fail to play. As soon as you re-enable an audio device, ...

Crash when changing the number of instances in a grouped sprite component at runtime

UE - Gameplay - Paper2D - Aug 4, 2016

A crash occurs when you remove a Sprite Instance within a Paper Grouped Sprite component of an Actor BP on Event Begin Play. I was able to reproduce this crash in the binary releases of 4.11.2 and ...

Runtime Virtual Texture Volume does not update correctly after World Origin shifting

UE - Graphics Tools - Terrain - Landscape - Nov 26, 2020

"Current state is a conduit and will reset to ref pose" warning when using a conduit to select an entry state

UE - Anim - Gameplay - Dec 12, 2022

AnimBlueprintLog: Error: Current state is a conduit and will reset to ref pose. This can happen if a conduit is an entry state and there isn't at least one valid transition to take. State Machine(Te ...

Dragging to the content browser from an open import selection window will cause an assertion crash

UE - Editor - Content Pipeline - Import and Export - Jun 21, 2016

Using a very specific way of importing an FBX will cause a crash assertion that closes the editor without opening crash reporter. Essentially when using the import button in the content browser and ...

MapCheck warnings when opening a map using landscape override material

UE - Graphics Tools - Terrain - Landscape - Mar 13, 2024

Niagara mesh renderers with a volumetric material trigger a handled ensure and are invisible in the scene

UE - Niagara - Jul 29, 2020

Volumetric materials on a Niagara mesh renderer will not appear in the scene and cause a handled ensure.  ...

Global SkyAtmosphere and Clouds Issues (Ambient Light)

UE - Graphics Features - Dec 3, 2024

Ambient Light on Volumetric Clouds from Sky Atmosphere always is calculated as if the clouds are at the north pole of the planet. Using a sphere-shaped Sky Atmosphere and Volumetric Clouds causes t ...

Illegal Else Without Matching If

UE - Simulation - Physics - Feb 3, 2017

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