Unreal Engine Issues

EnableGameSound in PIE settings won't work after LoadMap is called

When PIE is started with the Enable Game Sound box unchecked, we set master volume to 0 to mute game sounds. However, any call to LoadMap will both flush the audio device and set the volume back to ...

Skeletal Meshes load unused textures into memory from hard referenced assets. (Skeleton, Physics Assets)

Physics Assets & Skeletons referenced by the skeletal mesh will load materials & textures from their default skeletal meshes into the statistics window. Either the statistics window is incorrect abo ...

Vehicles with at least one kinematic collision do not function anymore

Using at least one source of kinematic collision on a vehicle causes animations or movement to not function any longer. This issue persists on child bones and collisions as well. Users are unable to ...

Moving assets in the Editor fails to fixup references causing the project to generate errors

Moving assets in the Editor is very unreliable. References may or may not be fixed up. No direct error is presented or a warning about problems. Any moves of the gameinstance, string table or certai ...

[AI] Assert leading to crash in FRecastTileGenerator::AddReferencedObjects

Licensee has reported a couple cases of an assert happening stemming from FRecastTileGenerator::AddReferencedObjects in a built game. They are limiting the MaxTileGeneratorTasks to 1. The crash occu ...

Different CRC32 Results for Repeated Hashing of UStaticMesh

1. Download the Licensee repro, compile, and open:https://udn.unrealengine.com/s/contentdocument/069QP00000CdN7WYAV 2. Press the first hatched button on the top bar, next to the Platforms dropdown. ...

[Niagara] Sampling static mesh location throws error

Standalone window played from editor hits assert Index >= 0 in UObjectArray

Standalone window in editor will hit assert in a bit of time. Issue doesn't happen is playing standalone via Visual Studio. ...

Deleting static mesh that is used by foliage tool in content browser then selecting foliage window crashes editor

If a static mesh is being used by the foliage tool and then deleted in the content browser, the foliage tool will retain a copy of the object and crash the editor if the foliage window is selected a ...

Memory Leak When Raytracing Enabled with Specific Rendering Settings

When a shipping build is packaged using specific rendering settings a memory leak can be observed. The licensee has noted that this leak presents as a 10MB per hour increase in RAM usage. It has a ...