Unreal Engine Issues
Unreal Engine Issues
Children of editor-only actors do not maintain correct transforms when placed inside level instances for PIE and cooked builds
UE - World Creation - Worldbuilding Tools - Level Instances - Oct 20, 2025We have found an issue where children of editor-only actors get wrong transforms in PIE and cooked builds when placed inside level instances. This affects both engine version 5.5 and 5.6. The issue ...
Using Integer Bitmask crashes editor
UE - Gameplay - Blueprint - Jun 2, 2016attempting to open a project with Bitmask Flags set to true in a blueprint crashes editor. Note In attached project, the crash has been narrowed down to the filepath \Content\ThirdPersonBP\Bluepri ...
FRotator::SetClosestToMe(FRotator) Doesn't Set The Correct Value
UE - Foundation - Core - Dec 10, 2019FRotator::SetClosestToMe(FRotator) doesn't set the correct value. Attached are files with the demonstrative code. Found in 4.23.1 CL#9631420 Reproduced in 4.24 Preview 4 CL#10570792, 4.25 CL#10520 ...
Crash occurs when undoing the adding of a node connected to an in-use reroute node
UE - Gameplay - Blueprint Editor - Mar 20, 2018REGRESSION Yes, this does not occur in 4.19.0 or in 4.18 Crash occurs when the user adds a node off a reroute node that's already in use, and then undoes that action. Found when testing around [Li ...
Actor Hidden in Game does not take lighting into account any longer
UE - Graphics Features - Jul 13, 2016Using indirect lighting from bounce cards that are set to Actor Hidden in Game no longer generate indirect lighting for the scene. This is a regression of 4.11.2 where this worked but is no longer ...
Cannot override screenshot hotkey from editor in packaged game
UE - Gameplay - Input - Apr 27, 2016The F9 hotkey for screenshots cannot be overridden in blueprints. Even removing the hotkey from the Editor Preferences>Keyboard Shortcuts list does not prevent the shortcut from being used in packag ...
Using "Show Mouse Cursor" breaks mouse axis movement
UE - Gameplay - Input - Apr 6, 2016If Show Mouse Cursor is enabled and the mouse is not locked to the viewport, input axis information passed to other actors breaks after releasing and re-pressing LMB. Regression? (Yes), issue (do ...
Exporting data table adds memory address/serialization info to column names
Tools - Apr 26, 2016Exporting a data table as a .csv causes column names to be replaced with memory address/serialization information, making it extremely difficult to read information presented. Regression? (No), is ...
Multi-line text functionality is removed from a print string variable when the variable is turned into an array within a struct
UE - Gameplay - Blueprint - May 5, 2016Multi-line text functionality is removed from a print string variable when the variable is turned into an array within a struct. Regression (no), Multi-line text functionality for strings in struct ...
4.16 Mobile Compat Pass - QA-Decals - UI glitch when playing on a 9.3.5 iOS Device
UE - Platform - Mobile - Apr 21, 2017While testing in QA-Decals on iOS device, after loading into the project the UI will be glitched ~50% of the time. After further testing, it seems this bug only occurs on iPads running the iOS vers ...