Duplicating a level duplicates any Child Actor components of Blueprint Actors in the original level

UE - Gameplay - Aug 6, 2015

Duplicating a level duplicates any Child Actor components of Blueprint Actors in the original level. Reproduced in 4.8.3 binary and Main (//depot/UE4/Promotable-CL-2635815) ...

Keep Simulation Changes Not Saving Values After Physics Simulation

UE - Gameplay - Blueprint - Oct 1, 2015

Simulating your level and then attempting to use the Keep Simulation Changes option on an actor that has simulated physics gives the No Properties Copied error. Occurs in 4.9.2 binary and Main CL ...

NavMesh Not Updating When Collision is Manually Added to/Removed From a Static Mesh

UE - AI - Nov 9, 2015

When you add or remove collision manually, the NavMesh will not update, even after rebuilding paths. The only way to get the NavMesh to update when collision is changed manually is to restart the ed ...

static meshes snap through static meshes created from bsp meshes to next lower mesh on the Z axis

Tools - Sep 17, 2015

Static meshes do not snap to meshes created from bsp brushes, despite being turned into static meshes themselves. They instead snap to the next lowest mesh on the z axis. ...

Hidden In Game option for Layers in TileMap Editor not working

UE - Gameplay - Paper2D - Oct 26, 2015

Using the 'Hidden in Game' option in the Tilemap Editor does not hide the associated layers in game as expected. I tested this issue in 4.8.3, 4.9.2, and 4.10 Preview 2 binary releases and the issu ...

Using Show Mouse Cursor causes mouse to become detached from game window

UE - Editor - UI Systems - Slate - Aug 24, 2015

Using the Show Mouse Cursor command (or BP node) will make the mouse appear in the game window however at that point the mouse does not interact with the game unless one of the mouse buttons is held ...

Asset selection menu tooltips can overlap the dropdown menu

Tools - May 23, 2016

Asset selection menu tooltips can overlap the dropdown menu. It is using the Content Browser tooltips, which attempt to go down and to the right of the menu. However, if the menu is close enough t ...

Set Actor Enable Collision doesn't turn off collision for Child Actor Components

UE - Gameplay - Jan 30, 2017

Set Actor Enable Collision doesn't turn off collision for Child Actor Components. User expects it to do so because other nodes like Set Hidden in Game work on the entire actor and the API explains i ...

When move selected foliage to level, Foliage can not move to level.

UE - World Creation - Worldbuilding Tools - Foliage - Jul 18, 2017

With 4.15, I can move Foliage to "Sublevel B", but I can not move it with 4.16. It seems to be affected by the update in 4.16 (New: When moving a foliage asset to a new level, you will now be prompt ...

Instanced Components variable not returning updated values in the construction script

UE - Gameplay - Blueprint - Jun 4, 2018

It is currently not possible to set variable values of an actor component, instanced in the level, by using the "details" pane. The Actor's construction script will only evaluate the variable defaul ...