Crash launching ES31 app on Android

UE - Platform - Mobile - Apr 9, 2018

This has occurred so far using ES31 with Launch On to Android. It didn't occur with ES2 or Vulkan.Error: === Critical error: === Error: Error: Fatal error: [File:D:\Streams\Fortnite_Staging\Engin ...

Tabbing out of exclusive fullscreen leaves the window & backbuffer in an incorrect state

UE - Editor - UI Systems - Apr 24, 2020

With windows 10 there has come some new swap chains, which unfortunately messes some things with regards to fullscreen up. We've fixed a bunch in the renderer (which would downright cause crashes), ...

Staging Directory in Project Packaging Settings should not be saved as absolute path

UE - Foundation - Data Pipeline - Cooker - Jun 8, 2021

When you package a project via the editor, it updates the ProjectPackagingSettings to set the StagingDirectory to the specific one chosen by the user. However, it saves this path as an absolute path ...

[UDN-19505621] Hide Selected At Startup Issue

UE - Editor - Workflow Systems - Jun 10, 2025

From [Link Removed]: 你好,我发现这里的选项有一些工作逻辑不一致,提一个改进建议: ​ 当手动隐藏Actor小眼睛图标的时候,设置Hide Selected At Startup 是无效的,这具有很大的误导性,而其他任何情况下,工作都是正常的,比如: 1.小眼睛隐藏+Show All At Startup 2.小眼睛隐藏+Show Selected At Startup ...

Packaging a project to HTML5 and opening the project disables mouse over events

UE - Platform - Mobile - Dec 24, 2015

Packaging a game to HTML5 disables the mouse and mouse over events on local host, which prevents any mouse functionality from working in a packaged project. ...

Anim Curve Data Does Not Appear in Montages When Using Animation Modifier, MotionExtractorModifier

UE - Anim - Runtime - Apr 28, 2022

Occurs 5/5 times Regression does not occur as the MotionExtractorModifier appears to be new with UE5.  Curve data is not displayed in an Animation Montage when Animation Modifier, MotionExtractorM ...

An imported file that resides within the project's folders gets a relative path. That path is not updated it you copy the uasset to another folder. That breaks the Reimporting functionality.

UE - Editor - Content Pipeline - Aug 28, 2024

An imported file that resides within the project's folders gets a relative path. That path is not updated it you copy the uasset to another folder, so from the location of the new asset's the relati ...

Context sensitive actor list retrieves temp folder data in blueprints while using source control

UE - Gameplay - Blueprint Editor - Nov 12, 2015

If a project uses source control and a blueprint has been diffed against previous revisions, the revisions will appear within the temp folder. This temp folders contents appear in context sensitive ...

Projects are failing when Content/Pak folders are added outside of the saved folder

UE - Platform - Mobile - Oct 13, 2016

When the Content/Pak file is outside of the Saved Folder, it'll crash with an internationalization error. But when the Content/Pak file is inside of the Saved folder, there is not a crash. ...

Crash when adding Actor Array Element to a Sequencer Event Struct

UE - Anim - Sequencer - May 25, 2017

Crash when adding Actor Array Element to a Sequencer Event Struct Error message: Assertion failed: 0 [Link Removed] [Line: 56] Source Context: 42 N = FName(*StringName); 43 ...