Unreal Engine Issues

Deleting folders in the Content Browser will not delete them permanently from Project Folder

If you delete a folder from the Content browser that is in the Starter content, The folder will reappear if you reopen the project. The only way to delete them would be from Windows Explorer. I als ...

Instanced subobjects are not always instantiated as expected.

Instantiation of subobjects does not behave as expected when using the DefaultToInstanced UCLASS specifier. The licensee that reported the issue provided a sample project with some ensures added whe ...

[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. ...

Translucent material can't get valid custom depth RT on mobile platform and pc preview

Upgrading Project After Disabling Light PropagationVolume Plugin Causes Crash

Attempting to upgrade a project from 4.10 to 4.11, or 4.11 to 4.12 with the LightPropagationVolume plugin disabled causes it to crash. Found in converting a 4.10 project to 4.11, and reproduced con ...

SingleSampleShadowFromStationaryLights does not work in UE5 (when GPU-Scene is used)

The flag is not propagated in FPrimitiveSceneShaderData::FPrimitiveSceneShaderData and so is missing in GPU-Scene primitive data. Need to add: .UseSingleSampleShadowFromStationaryLights(Proxy->UseS ...

Crash after importing a 16k Normal Map while Unreal Real is Preparing Texture

This is a regression tested in //UE4/Release-4.27 cl18319896 Editor crashes after importing a 16k Normal Map while Unreal Real is Preparing Texture. Other non-normal maps seem to work without issue ...

Affect Indirect Lighting While Hidden can affect the environment after data layer unload in editor

After setting Affects Indirect Lighting While Hidden but before saving the level, the emissive contribution persistents through datalayer visibility toggles. This does not appear to occur in PIE, on ...

Crash on Applying a Material with PN Triangles Tessellation to Large Landscape

When applying a Material with nothing in it but PN Triangles turned on to a Large Landscape, the engine will crash. Also Reproduced in Main Promotable-CL-2513846 ...

Launching game on Oculus Rift through SteamVR reverses hands

When launching the VR Template for example on Oculus Rift but through SteamVR using -hmd=steamvr and disconnecting htc Vive, the player's hands are reversed. Important for titles that want to sell ...