Unreal Engine Issues
Unreal Engine Issues
Changing LOD materials on Merged Actors Crashes Editor
UE - Gameplay - Sep 12, 2016If you merg actors with LODs with the setting LODSelection Type set to "Use all LOD levels" then apply a material to the element 0 assigned to LOD1 the engine will crash. NOTE I wasn't able to rep ...
Xcode build will fail if project has a file that was added by the Editor that contains a Copyright (©) symbol
UE - Platform - Apple - Mar 27, 2017Code class files created by the Editor that include the Copyright symbol (©) are created with UTF-16 encoding. This encoding is not supported by Xcode on Mac, and will result in a build failure. In ...
Edits to floating point properties do not propagate to blueprint object instances if old values have more than 6 decimals of precision
UE - Editor - Workflow Systems - Apr 28, 2023[Link Removed] JH 2023-04-28 01:12:36 UTC Editing any object's float/double property via an Editor details panel will be truncated if it has more than 6 decimals of precision. (e.g. if I type in 0.12 ...
Crash when Matinee with 2 Event Tracks stopped from one of the Event Tracks
Tools - Mar 16, 2015When stopping a Matinee from an Event Track via the level blueprint, if you have 2 Event Tracks the editor will crash. Also Reproduced in Main Promotable-CL-2479729 ...
ApplyLocalExposure uses Output_ExtentInverse instead of Output_ViewportSizeInverse for bilateral grid UV
UE - Rendering - Graphics Features - May 18, 2026The ApplyLocalExposureCS shader in PostProcessLocalExposure.usf computes UV coordinates for the LumBilateralGrid 3D texture using Output_ExtentInverse (1/RenderTargetSize) instead of Output_Viewport ...
Steam fails to initialize when using the steamclient file from SteamCMD
UE - Online - May 18, 2020Steam fails to initialize when using the steamclient file SteamCMDLogLoad: Game class is 'ShooterGame_FreeForAll' LogOnline: OSS: Creating online subsystem instance for: Steam LogOnline: Verbose: ...
When show propertymatrix and delete target actor, the editor crash
Tools - Jul 11, 2017It looks like it is null reference in propertymatrix. It always occurs when I execute the reproduction procedure. ...
[CrashReport] UE4Editor_Engine!FPointerToUberGraphFrame::~FPointerToUberGraphFrame()
UE - Gameplay - Blueprint - Aug 15, 2017This is a trending crash coming out of the 4.17.0 release. Users have not provided any descriptions of their actions when the crash occurred, however the callstack is very similar to [Link Removed] ...
Reordering Instance Editable arrays in a Character Blueprint breaks the array
Tools - Nov 14, 2017When re-arranging an array that has been added to a character blueprint, the array adds an empty value to element [0] and leaves it in a broken state. I tested this using the Level blueprint as well ...
Crash closing the TM_Landscape map in the editor
UE - World Creation - Worldbuilding Tools - Foliage - Apr 18, 2017The editor is crashing after closing the TM_Landscape level This is a regression from 4.15.2 ...