The order of Actors assigned to a Physics Constraint affects the simulation

UE - Simulation - Physics - Jun 8, 2018

The order in which actors are listed on a physics constraint affects the physics simulation. This should not make any difference in how the physics are simulated. Regression?: No This occurred in ...

Switching CanEverAffectNavigation on a Dynamic Obstacle Leaves Original Area Behind

UE - AI - Sep 15, 2016

When setting Can Ever Affect Navigation to false, moving it, and then setting it back to true, the originally affected area remains, and it also creates a new affected area. This occurs each time y ...

Several issues with 4.25.1 and Win 7

UE - Graphics Features - Jun 22, 2020

Users are reporting issues with the 4.25.1 hotfix and Win 7, including running cooked builds and the editor crashing: https://forums.unrealengine.com/unreal-engine/announcements-and-releases/1755531 ...

SkyAtmosphere is not displayed in ES3.1 Preview

UE - Platform - Mobile - Feb 22, 2021

Atmospheric Fog is not displayed as well. ...

Automotive Materials - ClearCoat Specular Artifact with Saturation ~1

UE - Graphics Features - Mar 8, 2023

[Link Removed][Link Removed] ...

Shadow Quality regression on mobile for Movable Directional Lights

UE - Platform - Mobile - Oct 11, 2016

Shadow quality from a movable directional light has lower resolution quality than the previous release of the engine. This is a regression in quality from 4.12.5 to 4.13. Tested with: Good Quality ...

Copy/Paste a data asset fields cause the fields to affect each other

Tools - Jul 7, 2016

When an element of a data asset is copied into another field, the two fields become "linked" and further edits to one field begin to affect the other. ...

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 ...

Using Start Players as Spectators checkbox does not affect Player0

UE - Gameplay - May 20, 2015

When setting up a custom game mode blueprint, if the "Start Players as Spectators" checkbox is checked the first player loaded in PIE will not be in spectator mode. ...

Level sequence attachment dirtying bugs - 5.4

UE - Anim - Sequencer - Mar 28, 2024

Level Sequences can mark the level they are in as modified without modifying them, as well as get themselves into a state where they modified themselves when saved. ...