Unreal Engine Issues
Unreal Engine Issues
Crash after adding an AI Perception component to a parent and child character
UE - Gameplay - Sep 14, 2017Crash after adding an AI Perception component to a parent and child character. First they both must have had AI Perception components > Compiled and saved > Then both AI Perception components delete ...
Editor crash loading a Blueprint asset when a child scene component C++ type changes to a non-scene component type.
UE - Gameplay - Blueprint Editor - Jan 16, 2019Changing the type of an existing child scene component to be a non-scene component type triggers some fixup code at load time which attempts to remove the node from its current position in the scene ...
Colon in UPROPERTY category invalidates iterative build
UE - Foundation - Core - Cooker - Jan 13, 2017The presence of a colon ':' character in the category string of a UPROPERTY will cause iterative cooking to generate the following error:Found unparsable ini setting Windows.EditorPerProjectUserSett ...
Regression: "Play particle effect" anim notifies are not seen in the editor playing level sequence/matinee when Attached is set to false
UE - Graphics Features - Dec 21, 2017Not Attached particle system is not seen in the viewport of the editor. This particle will be seen normally when PIE. Regression? Yes. This issue is not reproduced in 4.17 version. You can simply ...
The first time OnConstruction is called after duplication the Actor still has default class values
UE - Gameplay - Blueprint - Dec 18, 2014A Blueprint derived from a custom Actor class resets its variables to their default values when the Actor is duplicated, even if the actor being duplicated has a different value for that variable. T ...
Unable to change the 'Actor to Track' on Cine Cameras when the target Actor is in a different Sublevel
UE - Anim - Sequencer - Jul 2, 2018You are unable to track Actors that are in different sublevels when using Cine Cameras. The 'Actor to Track' is set back to none if the target Actor isn't in the same sublevel as the Camera. This is ...
Using Blueprint Interface functions that take other Interfaces as parameters can cause the Editor to crash in PIE mode.
UE - Gameplay - Blueprint - Jan 20, 2015If a Blueprint Interface function takes other Interfaces as parameters, and a circular dependency is present, the Editor will crash when the interface is called. CRASH REPORT: [Link Removed] CALLS ...
[AI] ZoneGraph does not update build settings when changed in project settings
UE - AI - Navigation - Dec 11, 2023The build settings for ZoneGraph do not get refreshed after the editor loads. Changing the snap distance or the snap angle will not be reflected in the ZoneGraph until you reload the editor. You can ...
The Lyra's Readme.md from Github is not clear on how to setup the project for usage
UE - Gameplay - Feb 13, 2025The Lyra's Readme.md from Github is not clear on how to setup the project for usage. Following the https://github.com/EpicGames/UnrealEngine/blob/ue5-main/Samples/Games/Lyra/README.md instructions a ...
Unable to pause Camera Shake if Google VR plugin is enabled
UE - Platform - XR - Jun 22, 2017Unable to pause Camera Shake if Google VR plugin is enabled. Everything pauses correctly if the Google VR plugin is disabled. Unable to test in Main due to blocker with enabling Google VR plugin. ...