FWindowsWindow::ReshapeWindow may get called with a NewHeight of 0 when using the editor through VPN, causing a crash

Tools - Jul 10, 2017

When calling ReshapeWindow, aspect ratio is determined by dividing the new width by the new height. We could prevent a potential crash here by validating these numbers before performing the division ...

Linux server builds of 4.24.0 failing due to Text3D plugin's dependencies on FreeType2 and HarfBuzz

UE - Platform - Linux - Jan 31, 2020

The build error is descriptive. FreeType2.Build.cs and HarfBuzz.Build.cs explicitly check if they are being used for a Unix server build and throw exceptions to prevent that. Commenting out those ex ...

Scene Depth appears to return zero on iOS

UE - Platform - Mobile - Feb 13, 2017

Scene Depth appears to return zero on iOS. In this test the material applied to an image does not appear to lerp between 0 and 1 for the various objects in the scene, implying that the Scene depth ...

Hierarchical Instance Static Mesh's array does not reorder itself correctly

UE - Graphics Features - Jan 16, 2017

When an instance is removed from a Hierarchical Instanced Static Mesh's array, if there are indices that are further along in the array that fill that index, the last index in the array is used to d ...

Up Ratio on the Gear Setup for Vehicle Movement Component does not work correctly

UE - Simulation - Physics - Sep 11, 2015

When changing Up Ratio for the Gear Setup in a Wheeled Vehicle's Vehicle Movement Component, there are some weird results. At 1.0 for Gear Setup, the gear should shift once RPM is at max but it will ...

Unable to open editor after updating to latest AMD driver

UE - Graphics Features - Oct 30, 2017

After updating to Radeon Software 17.10.3 I can no longer open the editor. This has been seen on both a R9 390X and a R9 290. If I use AMD's Auto-detect software it's recommended version is 17.7.2 ...

[MetaSounds] - Changing an Input to Modulation Parameter crashes editor due to module load order

UE - Audio - MetaSounds - May 27, 2022

Setting an Input type on Modulation Parameter crashes the editor with:Assertion failed: Pair != nullptr [File:E:\SMoyls_UE5_Release-5.0\Engine\Source\Runtime\Core\Public\Containers\Map.h] [Line: 643 ...

GetStaticMeshViewport() is called without checking if it returns a valid viewport causing the Editor to crash

UE - Editor - Dec 9, 2021

This is not a regression. Tested in: //UE4/Release-4.27 CL18319896 Binary //UE5/Release-5.0-EarlyAccess CL16682836 Binary //UE5/Release-5.0 CL18407655 Personal P4 When opening a static mesh without ...

USkinnedMeshComponent::PredictedLODLevel can be set below MinLOD

UE - Anim - Rigging - Aug 12, 2019

 Within USkinnedMeshComponent::UpdateLODStatus_Internal, if the USkinnedMeshComponent does not yet have a MeshObject, MaxLODIndex will be left as 0 and as a result PredictedLODLevel will be set to 0 ...