DefaultSceneRoot causes Get Actor Bounds to Return 128

UE - Gameplay - Jun 1, 2016

When using the Default Scene Root component in a blueprint with no additional components, the box extent of the Get Actor Bounds node is returning 128,128,128 instead of the expected 0,0,0. If you ...

Draw at desired size does not return to being false when unchecked

UE - Editor - UI Systems - Aug 4, 2017

When setting "draw at desired size" for a widget component to true, the "Draw size" will no longer respond to input. ...

Disabling Shadow Denoiser causes raytraced shadows from Rect Lights to disappear

UE - Graphics Features - Lumen - Nov 6, 2020

Disabling Shadow Denoiser causes raytraced shadows from Rect Lights to disappear ...

Mac - Xcode fails to build C++ project with a Shell Script Invocation Error

UE - Platform - Apple - Oct 5, 2020

This does not occur in 4.25.4 Binary and is a regression. ...

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, 2025

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. The behavior only shows after d ...

Foliage Instanced Static Meshes disappear when FISM Component BP is compiled

UE - World Creation - Worldbuilding Tools - Foliage - Nov 10, 2017

This 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 ...

Ensure when adding more than one camera to world in VR mode

UE - Editor - Workflow Systems - Jun 13, 2017

Ensure condition failed: Lhs.CurrentNum == Lhs.InitialNum [Link Removed] [Line: 197] Array has changed during ranged-for iteration! Ensure occurs after dragging in multiple cameras into the world i ...

Mouse dragging cursor accelerates significantly on Mac

Tools - Jan 18, 2017

This 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, 2017

Set 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 ...

Changing a variable during simulate will cause physics object to jump around

UE - Simulation - Physics - Mar 16, 2016

If 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 ...