M_Volumetric_Sky_Prototype Material has compile errors

Engine - Content - Mar 17, 2020

The material "M_Volumetric_Sky_Prototype" has numerous compile errors that prevent it from being used. This was reported and tested in 4.25 Preview 2 (CL-12055273) and reproduced in 4.26 (CL-121923 ...

Crash when using Share Material Shader Code and Native Metal Libs with r.Shaders.Optimize=0

Rendering - RHI - Mar 17, 2020

Using r.Shaders.Optimize=0 with native metal libs results in a crash of the packaged build at runtime. Workarounds is to either not use native metal libs for text shaders or in MetalShaders.cpp co ...

Map Get Node Pins In Niagara Module Scripts Can't Search For Standard Data Types

Rendering - Niagara - Mar 16, 2020

This wasn't like this in 4.24 (see attached images). If you create a variable Engine.Owner.Position the search will find it however. Found in 4.25 Preview 2. Reproduced in 4.26 Main. ...

Datasmith - Materials cropped different fields in the same bitmap only display one texture

Tools - Datasmith - 3dsMax - Mar 16, 2020

Material cropping in 3DS Max doesn't seem to translate well into Datasmith when they are used in the same bitmap. This was reported and tested in 4.24.3 (CL-11590370). This was reproduced in 4.23.1 ...

New VR-Basic level triggers Metal validation layer assertion

Platform - Mac - Mar 16, 2020

This was discovered externally and reported on UDN here: https://udn.unrealengine.com/questions/563268/mac-editor-crash-when-disable-ambient-occlusion.html ...

Reflection capture memory not released

Rendering - Features Teams - Mar 16, 2020

Until 4.23.1, the value of the Texture Memory Cube is reduced to an appropriate size. It is explained in the following thread:https://udn.unrealengine.com/questions/398103/index.html ...

Adding a camera cut track through sequencer scripting does not set the movie scene's camera cut track

Tools - Sequencer - Mar 13, 2020

When adding a camera cut track through sequencer scripting there is no way to set the camera cut track on the movie scene, which is how the add track menu determines if a new one can be added. This ...

Enabling Anisotropic BRDF causes crash upon Editor restart

Rendering - Ray Tracing - Mar 13, 2020

Enabling the Anisotropic BRDF (beta) causes crash upon restarting the Editor. This was reported and tested in 4.25 Preview 2 (CL-12055273). This was reproduced in main 4.26 (CL-12161634). ...

Large Landscapes using World Composition have weird LODs when streamed out and back in

Tools - World Composition - Mar 13, 2020

When World Composition Sublevels are streamed out and back in the LODs appear distorted. This reported and tested in 4.24.3 (CL-11590370). This was reproduced in 4.23.1 (CL-9631420), 4.25 Preview ...

Hidden Shadows Aren't Rendered When Raytracing Is Enabled

Rendering - Ray Tracing - Mar 13, 2020

Hidden shadows aren't rendered when ray tracing is enabled. Found in 4.25 Preview 2 CL#12055273 Reproduced in 4.23.1 CL#9631420, 4.24.3 CL#11590370, 4.26 Main CL#12123513 ...