Unreal Engine Issues
Unreal Engine Issues
The Alpha Coverage Thresholds in texture settings doesn't work as expected
UE - Editor - Content Pipeline - Import and Export - Nov 6, 2020Light Propagation Volume does not work on Linux
UE - Graphics Features - Feb 1, 2021It's easiest to see the change on the top of the table or back of the chairs when following the repro steps. I've attached screenshots of the Windows and Linux comparison with Intensity set to 20. ...
Gameplay Cue Notify Paths in Game Feature Modules don’t work when written in the ini file, only when added via AddGameplayCueNotifyPath()
UE - Gameplay - Gameplay Ability System - Dec 4, 2023The gameplay cue may work fine the first time. If this is the case, then relaunch the editor. It should then be broken, as the tag is no longer loaded after its creation. ...
Mover standalone backend allows non-persistent sync structs to carry over between frames
UE - Gameplay - Player Movement - Mover - Jul 16, 2025Only certain sync state structs are intended to persist between frames. These are configured via MoverComponent's PersistentSyncStateDataTypes array. There appears to be a bug in the way the standa ...
Switching to SM4 with LPVs active crashes Editor
UE - Graphics Features - Jun 18, 2015Switching to SM4 when you have LPVs active in a project will crash a project. Also reproduced in Main Promotable-CL-2589716 and 4.8.0 Launcher [Link Removed] ...
Splitting a struct in an Anim Blueprint does not work
OLD - Anim - Mar 23, 2015In an Anim BP, splitting the transform structs of a Transform (Modify) Bone node causes the node to be come non functional. Transform components must be combined in order for the node to work. EX ...
Draw Material to Render Target renders black in Standalone
UE - Graphics Features - Sep 28, 2016The 'Draw Material to Render Target' in blueprints renders black when launched in Standalone. This is not the case when using the same blueprint and running PIE. The interesting thing about this is ...
IsRunningGame( ) is false on iOS when running on device
UE - Platform - Mobile - Oct 20, 2016When running project on iOS Devices, IsRunningGame( ) in CoreMisc.h returns false. ...
Scale of the parent of a Motion Controller Component is ignored
UE - Platform - XR - Nov 17, 2016Seems like although you can set a scale on a MotionController component, the scale of the parent of the motion controller component is ignored. ...
Major performance drop with instanced meshes since PhysX 3.4 upgrade
UE - Simulation - Physics - Mar 15, 2017Major performance drop with instanced meshes since PhysX 3.4 upgrade Regression: YES Worked: 3172292 (4.13.2) Broken: 3249277 (4.14.3) For me, my results were: 4.8 through 4.13 No Collision - ...