Unreal Engine Issues
Unreal Engine Issues
Draw at desired size does not return to being false when unchecked
UE - Editor - UI Systems - Aug 4, 2017When setting "draw at desired size" for a widget component to true, the "Draw size" will no longer respond to input. ...
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 ...
Blender FBX imports with wrong frame count with "Use Default Sample Rate" disabled
Tools - Jan 17, 2017Blender FBX imports with wrong frame count with "Use Default Sample Rate" disabled. Note: This animation has a key on every frame. I have checked and the fbx keys are set at 30fps intervals (conf ...
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 ( ...
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 ...
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 ...
Crash when confirming a directory to import a USD file to via the USD Stage window
UE - Editor - Content Pipeline - Import and Export - Nov 21, 2019Crash when confirming a directory to import a USD file to via the USD Stage window The repro does not seem to be 100% consistent and it can take a few attempts to hit the crash. The USD Stage wind ...
Changing a variable during simulate will cause physics object to jump around
UE - Simulation - Physics - Mar 16, 2016If a user has an actor that is simulating physics during simulation of play in the editor and they then change the value of a variable trough the details panel below the world outliner then the acto ...
Undo Delete Subcomponent/Child Actor of Blueprint while Playing Causes Crash
UE - Gameplay - Blueprint - Mar 12, 2015The title pretty much explains it all. When creating a blueprint and using a subcomponent or child within that blueprint, deleting the child actor, and then undoing while in play, causes crash. ...