Unreal Engine Issues

Wake/Sleep events are not properly handled with Welding

Wake/Sleep events are not generated for components set to generate wake events after having a component not set to generate wake events welded to them. Wake/Sleep events are also not dispatched for ...

TVOS - Adding Game Center image assets causes build script error

"We are trying to add required Game Center assets to our Apple TV project. We are using the source code version of UE4. It seems that the editor UI does not support adding the Game Center leaderboar ...

Constraining aspect ratio of cine camera with post process material attached causes rendering issue

Applying a PP material that uses absolute world position to a cine camera using "constrain aspect ratio" causes rendering issue. Note: Changing the film back settings on the camera also results in ...

Landscape Resample Tools does not keep Streaming Proxy

alone ...

Landscape Resample Crashes Editor in Sublevel Map

When using a SpeedTree asset, a Zero Triangles warning appears

When exporting from SpeedTree with LODs + billboard, It seems that a warning is issued by including a material used only by Billboard. Is there a way to deal with it? ...

PrecomputedAOMask cannot be used when Virtual Texture is enabled

The problem is that when the VirtualTexture lightmap is enabled, the value returned by the material node's PrecomputedAOMask is incorrect. ...

Crash When Playing After Setting Size of Retainer Box to Minus

Retainer box has minus size occurs crash when PIE, standalone and package.  Probably, we should add any codes for adjust size to 0 or more to  URetainerBox::SynchronizeProperties(). ...

Branching Point Invalidates looping section settings

OBJ import - Auto Triangulation - Error: No polygon were found on mesh ''

"When translating some geographic data into a .OBJ, and importing into UE4. More than 165 of the meshes work. Some, i am having a hard time with. I've attached an example. AUT-mesh.obj is one of the ...