Realtime Rendering toggle disabled after using Cloth Painting

UE - Runtime - Deformable - Jul 29, 2021

After finishing cloth painting, the ability to toggle Realtime Rendering in the viewport is greyed out. Additionally, the Disable Realtime Override button doesn't seem to have any effect. This probl ...

Adjusting Vegetation Growth for Bushes in Media Mode alters their global size settings

TM - Tools - Jun 25, 2026

Reported in SF [Link Removed] When making adjustments to the Vegetation growth Season parameter inside Media Mode, if a scene contains Bushes then any adjustments to the Vegetation growth will adju ...

Reimporting mesh will wipe any collisions that were setup using the Static Mesh Editor

Tools - Jun 12, 2015

When Reimporting a mesh the collision that is created using the methods in the Static Mesh Editor will be wiped if there was not previously setup UCX custom collision. ...

Flipbook components' collision in Characters is ignored

UE - Gameplay - Paper2D - Dec 23, 2014

Flipbook components' collision in Characters is ignored. ...

UMG Images Not Inheriting Texture's Filter Setting

UE - Editor - UI Systems - Dec 24, 2015

When you import a texture that is low resolution (such as pixel art) if you attempt to use it in a UMG image, the filter that you have applied to that texture is not inherited. This causes the image ...

Sub Classing World Settings Causes Hot Reload to Crash

UE - Foundation - Core - Feb 3, 2016

When creating a subclass of World Settings, attempting to use the in-editor compile button to compile the code causes the editor to crash. Found in 4.11 Preview 4. Reproduced in 4.10.2 binary and ...

[CrashReport] Crash on Mac when running specific cook commandlet

UE - Foundation - Core - Apr 10, 2017

This is a Mac commandlet crash that is experienced by a few external users. ...

5.6 Skeletal Meshes with Disabled Sections Flicker in Ray Tracing Scene

UE - Rendering - Graphics Features - Ray Tracing - Nov 7, 2025

Skeletal meshes with disabled mesh sections will flicker in the Hardware Ray Tracing Scene. Also tested on //UE/Release-5.6, CL:45232827 ...