Unreal Engine Issues

[Niagara] Sampling static mesh location throws error

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 ...

Crash when converting non-WP maps containing landscape with OnlyMergeSubLevels enabled

When trying to convert a non-WP map with OnlyMergeSubLevels enabled crash after a while ...

[4.10 P2] UI is offcenter for dropdown menus and tooltips in editor

In Windows 10, on a system set up with 2 970GTX GPUs in SLI, the dropdown menues from the main navigation tabs will be offset and to the lower left of the screen when selected. ...

Crash caused by Buffer Overread in TBitArray operator < function

A licensee has reported a crash that is caused by a Buffer Overread in TBitArray's operator < function. While the licensee did not provide reproduction steps, the crash is apparent from looking at t ...

Smart Nav Links created via Load Level Instance are broken, but Simple Nav Links are fine

Maps brought in via Load Level Instance that contain Nav Link Proxys configured to use the Smart Link instead of the Simple Link end up creating a link at the center of the world instead of their ac ...

A welded hierarchy blocks updates to collision settings on all but the root primitive. Calling SetCollisionResponseToChannel on the children won't work.

A welded hierarchy blocks updates to collision settings on all but the root primitive. Calling SetCollisionResponseToChannel on the children won't work. The licensee noticed that IPhysicsProxyBase* ...

Select node causes HTML5 project to crash in browser

Select node causes the project to crash on HTML5. Expression (ExportMap.IsValidIndex( Index.ToExport() )) failed in D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.10\Engine\Source\Runtime\CoreUO ...

Copy and Pasting the Value for a Vector3 Parameter causes Color Picker to Stretch Across screen

When copying the 'Value' of a color from the color picker within the material editor, and pasting it into the value field of a new color picker dialog window, it stretches across the screen and caus ...