Detour AI Controller Not Functioning Properly

UE - AI - Oct 30, 2015

Using AI Detour in 4.9.2 works as expected, however, when upgrading a project from 4.9.2 to a newer version, the AI pawns fail to properly navigate around each other when moving to their respective ...

Actors in 4.16 do not enter a resting state when expected

UE - Simulation - Physics - May 17, 2017

There is extra random bouncing that can last a couple of seconds that does NOT occur in 4.15.2. Sometimes the cube would look like it settled, then randomly pop and bounce again. This happened on b ...

Subway Sequencer too dark due to tonemapper film changes in 4.15

Docs - Samples - Jan 31, 2017

Scene is too dark in subway sequencer due to tonemapper film changes in 4.15. ...

Property Table rendering very slow in 4.19 (regression)

Tools - Feb 8, 2018

Editor frame rate is very slow rendering the Property Table in 4.19.  This is a regression from 4.18 Showing frame-rate in the editor with the property editor open shows really high GPU time: [Ima ...

Preview Background Feature Removed From UMG In 4.13

UE - Editor - UI Systems - Sep 26, 2016

Widget Blueprint no longer has "Preview Background" feature in 4.13. This is misleading since the documentation mentions to use this in the workflow here: https://docs.unrealengine.com/latest/INT/En ...

Imposter renders incorrectly in PCG volume after updating to 5.4

UE - World Creation - Procedural Tools - PCG Component - Jun 27, 2024

The last level of impostors in PCG volumes render incorrectly after updating from 5.3 to 5.4. ...

Widgets stick out from letterboxed player screen on 4.25

UE - Editor - UI Systems - Sep 28, 2020

Note:   Clipping on letterboxed player screen works fine on 4.24.   This issue was brought in by CL#10541213. Here's a workaround TSharedPtr<SGameLayerManager::FPlayerLayer> SGameLayerManager::Fin ...

Packaging fails after changing from Dynamic to Static Nav Mesh Runtime Generation

UE - AI - Feb 8, 2016

If you package with Runtime Generation set to Dynamic and then switch to Static and attempt to repackage, the packaging will fail with the following error message.[2016.02.08-16.18.14:511][217]MainF ...

Initial Seed value on Random Stream node has no affect

UE - Gameplay - Blueprint - Nov 16, 2017

When using a Random Stream variable to populate a Random Integer in Range from Stream, the Initial Seed value has no affect on the random integer selected. Workaround: Using a Seed Random Stream or ...

Different Load Orders affect Shadows on Foliage & HISM

UE - World Creation - Worldbuilding Tools - Foliage - Mar 14, 2019

Different Load Orders affect Shadows on Foliage & HISM Discovered during verification of [Link Removed] Also created a Blueprint actor with a HISM and duplicated it three times and changed the mob ...