Unreal Engine Issues
Unreal Engine Issues
If any light source is deleted, and a single light has its visibility state changed in LightMixer, all the other lights in the scene that were invisible turn visible
UE - Virtual Production - Tools - Jul 31, 2025If any light source is deleted, and a single light has its visibility state changed in LightMixer, all the other lights in the scene that were invisible turn visible. The behavior only shows after d ...
World Override GameMode values do not save after project is closed and reopened
UE - Gameplay - Apr 17, 2015The gamemode settings under world override do not save once the project has been saved, closed and reopened. ...
The Ease function's Blend Exp reverts to its default value after closing/reopening the editor
UE - Gameplay - Blueprint - Jan 20, 2015The Ease function's Blend Exp reverts to its default value after closing/reopening the editor. Reproduced in 4.6.1 binary and in Main (CL-2408355). ...
Physics object set to OverlapAll will still collide with the player
UE - Gameplay - Aug 24, 2015Physics object set to OverlapAll will still collide with the player User Description: The pawn is simply colliding with and causing physics on objects it shouldn't be. To replicate: Set up a new ...
Foliage Instanced Static Meshes disappear when FISM Component BP is compiled
UE - World Creation - Worldbuilding Tools - Foliage - Nov 10, 2017This bug removes foliage from a level when the Component Blueprint is compiled. Switching the Foliage type asset to another component will cause the issue to stop occurring. The Component Blueprint ...
ServerTravel from a map with a GameMode set to Use Seamless Travel and then ServerTravel back from a map without Seamless Travel enabled will crash the editor
UE - Networking - Mar 3, 2015ServerTravel from a map with a GameMode set to Use Seamless Travel and then ServerTravel back from a map without Seamless Travel enabled will crash the editor. Reproduced in 4.7.1 binary and Main ( ...
A packaged game that contains a plugin with a custom struct and function using that struct will crash on launch.
UE - Foundation - Cpp Tools - Plugin System - Sep 9, 2015If a project is packaged with a plugin that contains a custom struct and a function that takes that struct as a parameter, the game will crash when the executable is run. [Link Removed] ...
Mouse dragging cursor accelerates significantly on Mac
Tools - Jan 18, 2017This also occurs in 4.14.3 This does not occur on Windows. Could not get this issue to reproduce while recording the screen with quicktime player, but if you experience it in person it really feel ...
Blueprint's location reset to 0, 0, 0 after being detached in a network environment
UE - Networking - Apr 24, 2017Attaching / Detaching a blueprint actor to a player in a network environment causes location errors when the detach occurs. Even without the attach events being replicated or the blueprint's movemen ...
Set tracking origin has a 90 degree offset between Floor and Eye level
UE - Platform - XR - Jun 15, 2017Set tracking origin has a 90 degree offset between Floor and Eye level. When switching the Setting for the Set Tracking Origin Node from Floor level to Eye level, there appears to be a 90 degree dif ...