Assets in disabled Emitter will cooked and loaded in Game.

UE - Niagara - Aug 17, 2015

Assets referred from disabled Emitter will cooked and loaded in Game. And licensee wants to make ParticleSystem with some emitters and sometimes they want to keep emitters but disabled. But disabled ...

Walking into some destructibles crashes the editor

UE - Simulation - Physics - Destruction - Aug 20, 2015

Submitted by a licensee on UDN. I verified it and have attached the test level that he provided. In the test map. some boxes fall and break. Walking straight into the boxes causes the editor to cra ...

Swarm: Not able to set number of processors to use for Swarm from the UI

UE - Graphics Features - Aug 25, 2015

There is a setting called "LocalJobsDefaultProcessorCount" in the Developer Settings tab in Swarm. After the change to make Lightmass build asynchronously while the user keeps working, this set ...

Adding a function to a BP Component causes compile errors in BPs that use that component

UE - Gameplay - Components - Aug 28, 2015

Adding a function to a Blueprint component causes other Blueprint that use that component to have Errors and must be re-compiled. ...

Material preview black when using Static Switch Parameter with Texture Objects

UE - Rendering Architecture - Materials - Aug 28, 2015

Material preview doesn't render correctly with using a Static Switch Parameter with Texture Objects. See attached image ...

Vertex Painting on Blueprint Static Mesh components lost on copy

UE - Gameplay - Components - Sep 1, 2015

After vertex painting on a Static Mesh component of a Blueprint, the Vertex paint data is lost when the Blueprint is copied. Oddly, pasting into a text editor shows VertexColorData, but it seems to ...

Lightmass GI doesn't work with Material-based color changes

UE - Graphics Features - Sep 4, 2015

A licensee is having trouble getting the visual results they want because Lightmass doesn't seem to handle color changes from materials. They are seeing this in 2 cases: (See attached images and tes ...

Material Instance Parameters "reset to default" button always shows, even if value is default

UE - Rendering Architecture - Materials - Sep 9, 2015

No matter if the value of a parameter you override in a Material Instance is the same as it's parent or not, it always shows the "reset to default" button. See static bool param in the images below: ...

Migrating a Material Instance pulls along its preview mesh and all associated materials and textures

UE - Rendering Architecture - Materials - Sep 14, 2015

A licensee has complained that if you assign a preview mesh to a Material Instance, it becomes a referenced asset, so migrating that MatInst will also migrate that mesh and whatever material is assi ...

Refraction not working with MakeMaterialAttributes

UE - Graphics Features - Sep 14, 2015

When setting a material to Use Material Attributes and then feeding in a Refraction value with MakeMaterialAttributes, the refraction doesn't work properly Reported in 4.8, but I tested in Main as ...