Lumen doesn't use correct sky light settings when GI scalability changes from Low to High

UE - Graphics Features - Lumen - Sep 24, 2024

When the Global Illumination scalability settings are changed in the editor from High to Medium, they primarily act on the r.Lumen.DiffuseIndirect.Allow and r.SkyLight.RealTimeReflectionCapture.  No ...

Mouse Position doesn't properly update on tick when framerate is low in standalone game

UE - Editor - UI Systems - Slate - Dec 11, 2015

If a game is run in the standalone editor and the FPS drops to ~20-30 FPS, pressing an event such as LMB and returning the mouse position on tick will cause the tick to jump inconsistently. Note: ...

Crash When Curve Editor is on When Animating Button Transform in Widget Blueprint

UE - Editor - UI Systems - Mar 18, 2016

In a Widget Blueprint, after animating a button to transform vertically (possibly other directions) with the Curve Editor active, engine will crash upon creating a second animation. ...

Engine Crash When Enabling Distance Field Global Illumination and Opening TM-LightingFeatures

UE - Graphics Features - Jan 11, 2017

I was able to open the level once and after a few seconds of being opened the editor crashed while compiling shaders and generating mesh distance fields. Since then I have not been able to open th ...

Character floats off of ramp when walking into a wall that is slightly sloped

UE - Gameplay - Player Movement - Mar 24, 2017

Character floats off of ramp when walking into a wall that is slightly sloped. The wall angle is well above the walkable floor angle but the character seems to start walking up the wall regardless. ...

Foliage Instanced Static Meshes disappear when FISM Component BP is compiled

UE - World Creation - Worldbuilding Tools - Foliage - Nov 10, 2017

This bug removes foliage from a level when the Component Blueprint is compiled. Switching the Foliage type asset to another component will cause the issue to stop occurring. The Component Blueprint ...

Custom Stencil Not Working for Mobile

UE - Platform - Mobile - Nov 14, 2018

Setting a custom stencil on meshes is not working when using a mobile renderer. This is working as expected in 4.20 CL# 4369336 Found in 4.21 CL# 4541578 and 4.22 CL# 4556068 This is a regression ...

The vertex color view mode in the vertex painting editor mode ceases to work when the project setting "Extend default luminance range in auto exposure settings" is enabled.

UE - Graphics Features - Dec 31, 2019

When "Extend default luminance range in auto exposure settings" is enabled, the Color View Mode in the vertex painting editor mode ceases to work and without any warning to the user. ...

Curl Noise values on water body actors causes the shore to appear broken

UE - LD & Modeling - Terrain - Water - Oct 29, 2020

Water is new so I marked this not a regression This is worse in a Lake and River actors, Ocean kinda looks okay but also might need to be looked into ...

FCPXML export issues

UE - Anim - Sequencer - Feb 16, 2021

[Link Removed] Looks like a few issues when using FCPXML:Export is using expanded shot framesImport is off by one on the cut in frameWould be nice to default to Sequence Data on the Data Source opt ...