Occasional 1-frame UMG render data corruption on Metal

UE - Graphics Features - May 10, 2016

Localization warnings when opening a new project in 4.8.1

Tools - Jul 2, 2015

There are a couple of warnings that show up in the output log that are dealing with localization when opening up a new project. ...

[Feature Request] Random number generators in UE4 have short periodicity.

UE - Foundation - Core - Nov 14, 2019

Random generators in UE4 have a short periodicity. (FMath::Rand and RandomStream) I heard a xorshift variant has good characteristics. Could we consider importing it into UE4? [Image Removed] ...

UE 4.25.1 Offline Installer Display Error

UE - Editor - Content Pipeline - Datasmith - Importer - Jun 9, 2020

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Niagara : incorrect rendering on D3D12 when rendering a very large number of meshes

UE - Niagara - Feb 17, 2022

The input argument of DrawIndirect for Niagara meshes, which is made by ComputeShader, may be invalid. This problem does not appear with -onethread command line option. ...

UMG property binding fixup for real numbers doesn't always work

UE - Editor - UI Systems - UMG - Apr 5, 2022

For UMG delegates, we currently have a fixup pass that ensures that bound functions match the signature of the native delegate. However, the fixup appears to use the wrong function name, which cause ...

Matinee movie recording is broken in 4.10

Tools - Dec 18, 2015

When trying to record a movie from a matinee in 4.10, it can fail for a number of reasons: 1. The folder does not exist 2. The cinematic view modes do not take effect 3. Trying to record a streamin ...

Crash Importing Skeletal Mesh LODs with a lot of morph targets

OLD - Anim - May 18, 2016

Crash Importing Skeletal Mesh LODs with a lot of morph targets Error message: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 785] Array index out of bounds: 2 from an ar ...

[CrashReport] UE4Editor_Engine!FTexturePlatformData::GetNumNonStreamingMips() [texturederiveddata.cpp:1260]

UE - Graphics Features - Apr 10, 2017

Was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: Mips.Num() > 0 [Link Remov ...