Depth of field issues on Translucent Materials with Raytracing and DirectX12 enabled

Rendering - Ray Tracing - Oct 9, 2020

With DirectX12 and Raytracing enabled, translucent materials are not showing the correct depth of field.  Reported in version 4.25.3(CL 13942748). Tested and found in versions 4.25.3 and 4.24.3(C ...

iOS/TVos/Mac Compilation Error - Argument List Too Long

Platform - Mobile - Oct 8, 2020

Compilations are failing on iOS, tvOS and Mac due to the following clang error: clang: error: unable to exectute command: posix_spawn failed: Argument list too long ...

Undo function breaks local variables in Blueprint Function after compiling

Gameplay - Oct 8, 2020

Blueprint functions appear to correctly associate local variables when renaming the function. However when undoing a rename with ctrl-z the local variables appear to lose their association. Redoing ...

Launching a packaged game calling DownloadImage with -nullRHI option crashes

Tools - UMG - Oct 8, 2020

When using nullrhi, the Texture->Resource variable in UAsyncTaskDownloadImage::HandleImageRequest is null and a crash occurs in WriteRawToTexture_RenderThread. ...

Crash When You Add Get Landscape Material Node

Tools - Landscape - Oct 7, 2020

After staring a new, blank project, and adding a generic blueprint actor, the editor crashes after you add a "Get Landscape Material" Proxy to the event graph within the blueprint. ...

UBlueprintFileUtilsBPLibrary is inaccessible through Python script

Tools - Python - Oct 7, 2020

The BlueprintFileUtilsBPLibrary API is not accessible through python scripts run in the editor. Attempting to run a script utilizing BplueprintFileUtilsBPLibrary results in:LogPython: Error: Traceb ...

Power of two non square Virtual Texture causes crash if you resize it or change it in a Material Instance

Rendering - Oct 7, 2020

Power of two non square texture make UE4 crash in Material Instance and in engine resize when it's set in VT ...

Kinematic in Physics Asset Overrides Bone Scale of Skeletal Meshes

Physics - Oct 7, 2020

In a character's Physics Asset, a bone that is set to Kinematic and its children will have a scale of 1 overriding the Skeletal Mesh's Scale Transform settings. When the root of the body is changed ...

Light rendering becomes broken when at a distance of ~1000000 from origin

Rendering - Oct 7, 2020

Tested at X=20,000 with no issue Tested at X=500,000 with no issue Tested at X=1,000,000 issue occurs ...