Add Submix Effect Blueprint Does Not Have Any Effect

UE - Audio - Dec 11, 2020

Adding a second effect to the Submix Effect Chain on a Submix works as expected, but when trying to add a Submix Effect via Blueprint, there is no effect.  This also applies to "Add Master Submix Ef ...

Unable to play level sequences or actor sequences while the game is paused

UE - Anim - Sequencer - Dec 7, 2020

This is caused by several failures in the custom ticking and update logic for level and actor sequences. A possible solution is shelved in 14859265, but will need testing with all known cases of pau ...

Ensure when changing to MSAA with Forward Shading enabled - Entry.RenderTarget->GetNumSamples() == NumSample

UE - Rendering Architecture - RHI - Dec 2, 2020

DID NOT OCCUR IN BP FPS PROJECT - might be ContentExamples specific This issue does not occur when forward shading is disabled. This is not a regression as the same issue is hit in 4.25.4 ...

Editor crash with virtual texture lightmaps enabled

UE - Platform - Mobile - Nov 30, 2020

Material PlatformStats Android GLES&Vulkan Pixel Shader Row is empty

UE - Platform - Mobile - Nov 26, 2020

I think it's caused by mismatching names of shadertype, which was hand-coded in MaterialStatsCommon.cpp ...

Making a hidden level the current level changes tile position in World Composition

UE - World Creation - Worldbuilding Tools - World Composition - Nov 26, 2020

Raytraced reflection doesn't work with high roughness

UE - Graphics Features - Lumen - Oct 30, 2020

Even when the max roughness for raytraced reflections is set to 1, they seem to be blended away at far below that value. For projects (e.g. film,vfx) where quality trumps speed it would be valuable ...

Datasmith Metadata returned as empty array on Python Import

UE - Editor - Content Pipeline - Datasmith - Importer - Oct 27, 2020

Metadata information seems to not be available on import. A user has reported that this was working before but I was able to reproduce the issue in //UE4/Release-4.24 cl 11590370 I am currently lis ...

FBX re-import: only non fbx metadata should be restored during re-import

UE - Editor - Content Pipeline - Import and Export - Oct 23, 2020

The imported metadata is prepend with "FBX." so we can easily know if a metadata was imported or created in the editor. ...