Unreal Engine Issues

Volumetric Lightmaps do not work with Landscape texture mapping

It appears that the Lightmass Volumetric Lightmap does not work with Landscape textures. When it samples the Landscape with some textured material, the resulting lighting build data does not match t ...

Datasmith re-import crash - UE4Editor-UnrealEd!UMaterialInstanceConstantFactoryNew::FactoryCreateNew

From user:I'm getting repeatable crashes on re-imports after I've re-worked the models a bit in Max. The workaround now is to just delete everything from Unreal and do a fresh import, but as my o ...

Black screen on mobile at start app when not using startup movie or preload screen

Material accuracy on iPhoneX is significantly inferior compared to iPhone 7

The accuracy of World Position and Camera Position in Material on iPhoneX is very inferior to iPhone 7. If you enable UseFullPrecision the result will be the same. ...

Separate Translucency does not work properly on iOS when DepthFade and DoF are used

Effects using translucent materials using Mobile Separate Tranclucency and DepthFade do not display properly if DoF is enabled. By applying CL # 4558661 shared by [Link Removed], Android works norm ...

WorldSettings Blueprint crashes editor when saved/compiled

Making a Blueprint instance of the AWorldSettings class, then saving/compiling instance Tested in 4.20.3 (CL - 4369336), 4.21.2 (CL - 4753647), 4.22 (CL - 4958363) ...

[Input] Switching levels destroys auto-created Input Component which breaks emitUIInteraction

We auto-create a PixelStreamingInputComponent which handles the input coming from JavaScript's emitUIInteraction. This works in a UE4 app with a single level, but it seems that if you change levels ...

Crash in Debug Camera (patch provided in comment !)

Hello, A licensee has reported us a crash in DebugCameraController / DebugCameraHUD.  It is due to a missing check in ADebugCameraHUD::PostRender() of SelectedActor set in ADebugCameraController ...

Loading Visual Studio toast does not close

The Loading Visual Studio toast never closes after opening Visual Studio by double clicking on a C++ Class or Blueprint node. I do not see this issue when I select File > Open Visual Studio 2017. ...

Deleting reference variable will result in unusable picker appearing on resolve nodes

REGRESSION: No When deleting a reference variable, any resolve node pins using it will have a picker added, which won't have anything listed in their dropdown. This isn't consistent with what happ ...