Unreal Engine Issues

CreatePatchLibrary is broken

It seems the FEditorShaderCodeArchive.LoadExistingShaderCodeLibrary missed some functions, use FEditorShaderCodeArchive.AddShaderCodeLibraryFromDirectory instead could fix the issue. ...

Unable to name a component if the name was used on a deleted component

When deleted a component in the in world component editor, that name cannot be used for another component until the editor has been restarted. ...

No warning is shown when a disabled mobile shader permutation is required for rendering

OnDragDetected fires off with a single click for 3D widgets

When Using the On Drag Detected on a 3D widget, the drag function fires off on a single click (No dragging necessary) ...

Changing number of existing UHierarchicalInstancedStaticMeshComponent in Blueprint causes crash.

If using a UHierarchicalInstancedStaticMeshComponent in a C++ class and adding instances via the OnConstruction( ) function, editor can crash. ...

Fbx importer crash when reordering material array

Its possible to have a fbx file which as unused material in the fbx node. The reorder material function is not handling this case. ...

Need to remove dependency on log2 on Android for older versions

The log2 function does not exist in libc.so on older Android. Using FMath::Log2 instead solves the issue. ...

External textures only work in pixel shaders

External textures currently only support pixel shaders, presumably because some platforms, such as Android only have pixel shader support. On other platforms this causes a regression though: For exa ...

[CrashReport] UE4Editor_CoreUObject!UStruct::IsChildOf() [class.h:373]

Comments from users:I pressed Play while having a directional light selected in-editorChanged landscape collision mip level. ...

The cloth mask vertexcolor is not updated when re-importing new vertexcolors

The function UClothingAssetFactory::ImportToLodInternal that set the FClothPhysicalMeshData structure is not call again when we re-import so the vertex colors are not updated. ...