Different instanced materials are seen as the same material due to GUID

UE - Rendering - Jun 3, 2021

See licensee description of the issue: The problem appears when I have two instanced materials with the same number of parameters. I've noticed that ShaderMapId has MaterialLayersParameterIDs where ...

When Niagara is set to DesiredAge in Sequencer, the processing load increases after play

UE - Rendering - Niagara - Jun 3, 2021

This does not happen in 4.25.4. It has been confirmed to occur with 4.26.2 and UE4main. After playback is complete, a large amount of stalls can be seen in Insight. ...

DFAO artefacts created by landscape painted invisible in cooked builds

UE - Rendering - Jun 3, 2021

Looks like the issue stems from the DistanceFieldBentNormalAO pass ...

Decals can't use TransformLocalPositionToWorld material node

UE - Rendering - Jun 1, 2021

Likely we just need to create a new macro to enable TransformLocalPositionToWorld and TransformLocalPositionToPrevWorld in alternative use cases such as this. ...

[CrashReport] FTaskGraphCompatibilityImplementation::ProcessThreadUntilRequestReturn

UE - Rendering - RHI - Jun 1, 2021

Generated from CrashReporter ...

game terminated on android device when connect or disconnect usb dongle

UE - Platform - Mobile - Jun 1, 2021

The game crashed when the USB Dongle is connected or disconnected. Games that made by other engines are work fine. Refer to the attached video for the reproduce. ...

Light Types Show Flags in SceneCaptureComponent2D is not functioning properly

UE - Virtual Production - May 30, 2021

It was working until 4.25.4. It is easy to see if you turn on/off the Light Types Show Flags in SceneCaptureComponent2D. ...

DistanceToNearestSurface used for post process broken when separate actor culled

UE - Rendering - May 27, 2021

This one may not necessarily be a bug, as this is related to the nature of culling. If it is not, please let me know if there is an alternative method the licensee could use here in order to track a ...

Crash in virtual texturing when material instance texture sample param is switched to a non-square texture

UE - Rendering - May 27, 2021

The 4kVT is applied correctly, and you can switch the master material sampler to use the 2048x1024 texture, but if you switch it via the material instance param instead, the crash occurs. ...