Unreal Engine Issues

Shader Complexity not working correctly on Deferred Decals

If you place a deferred decal in the world and then set the view mode of the viewport to "Shader Complexity", the decal doesn't affect the complexity value. ...

Nanite Meshes aren't visible when using Texture Streaming Accuracy Viewmodes

Nanite Meshes are visible inside the view when using Texture Streaming Accuracy Viewmodes, they are not recoloured This includes all of the Optimization Viewmodes under Texture Streaming Accuracy:P ...

ObjectScale node in the material editor does not work with decals

The ObjectScale node does not output the correct values in the material editor. This method works to tile images with a Surface Material Domain on a basic plane, but does not work when using it with ...

Merged actors cannnot cast shadows when source actors Cast Shadows is disabled

Merging actors with cast shadows disabled causes the merged actor to be unable to cast shadows at all. Toggling the Cast Shadows option does not resolve the issue. This is seen in //UE4/Release-4.2 ...

Modifying Override Parameters on NiagaraActor blueprints created from a System Actor does not work

Modifying Override Parameters on NiagaraActor blueprints created from a System Actor does not work The System component appears to only use the default value set in the System.  This issue does no ...

Fix primitive uniform buffer validation.

GPUScene primitive validation is currently busted and asserts. It looks like there are two problems: 1) NaN's in the entries can cause comparison issues, so a MemCmp would be better. 2) There's a ...

"Complex Collision Mesh" is not rendered in "Visibility Collision" view mode

Consider this function in StaticMeshRender.cpp. FStaticMeshSceneProxy::GetDynamicMeshElements Now look for this line in the function: if(bDrawComplexWireframeCollision || (bInCollisionView && bDr ...

Fix up IOS errors calling UI API from non-UI threads

Body Instance property changes made in construction scripts are not applied

7054614 was submitted to fix an issue with not being able to modify physics properties on instanced blueprints child components. This is related to [Link Removed]. This change causes BodyInstance t ...

iOS Device Orientations Inverted

The EDeviceScreenOrientation landscape values appear to be inverted on iOS based on the comments in the code. i.e.EDeviceScreenOrientation::LandscapeRight // The orientation is landscape with the h ...