Unreal Engine Issues
Unreal Engine Issues
Crash when using automated groom import
UE - Editor - Content Pipeline - Import and Export - Jan 5, 2021UDN customer reported that using automated groom import through Blueprint was crashing. This can probably be reproduced with a Python script using an asset import task with the automated flag set to ...
Naming a variable 'LifeSpan' causes the default value to be reset after closing the editor
UE - Gameplay - Blueprint - Nov 3, 2020Customer reported this issue in Salesforce. I repro'd this issue in 4.25.3, 4.25.4, and 4.26. Therefore marking it as not a regression. Renaming the variable something like "LifeTimer" does not res ...
Game window renders transparent when launched with -game -log commands on Mac
UE - Platform - Apple - Oct 31, 2016This is only occurring on Mac and only in OSX 10.12. This is also a regression from 4.13 Right clicking in the dock, Show all windows, and selecting the game window does NOT fix the issue. Runnin ...
Low-level memory tracking has negative values for "FMallocUnused" and "Untracked"
UE - Foundation - Core - Oct 6, 2020"FMallocUnused" is immediately bellow 0. "Untracked" is reported to go below 0 after very long playtimes (over 36 hours). Reported in version 4.25.3(CL 13942748). Tested and found negative values f ...
Crash when Toggling Landscape Mode with Hidden Sub-Level containing a Landscape
UE - LD & Modeling - Terrain - Landscape - Oct 28, 2016A crash occurs when you have a hidden Sub-level containing a landscape and you attempt to toggle the Landscape Mode after re-opening the project. The licensee has authored their own fix for this is ...
Source assumes that TG_PrePhysics is the first tick group
UE - Gameplay - Feb 16, 2016Licensee has reported an issue with the source code and proposed a fix. The issue is that the source is assuming that TG_PrePhysics is the first tick group in all cases. Information can be found abo ...
Material Billboard Component doesn't respect screen size when taking into account Camera FOV and AR
UE - Platform - XR - Aug 27, 2020Material Billboard Component skews when Camera's Aspect Ratio is changed, and varies in size with changes to the Camera's Field Of View. Reported in version 4.25.3 (CL-13942748) and tested in versi ...
Bloom intensity broken with Post Processing Material replacing Tonemapper
UE - Graphics Features - Sep 25, 2020When replacing the Tonemap using a Post Process material, the Post Process Volume's Bloom Intensity can only be turned on or off, without varying degrees of effect. Reported in version 4.25.3(CL 1 ...
Tiling Sprite in UMG uses whole image
UE - Editor - UI Systems - Sep 21, 2020When a Sprite that has been created from a Texture Atlas is used in a Widget, it can not be tiled. Instead the whole Texture Atlas is tiled. Reported in version 4.25.3(CL 13942748). Tested and fou ...
Offset Root Bone Node needs reconstruction from velocities
UE - Anim - Jul 16, 2025The experimental Offset Root Bone node does not respect velocities, meaning that it does not work when a character is based on a moving platform. The capsule will rotate with the platform, but the r ...