Rebuild (with hot reload) fails on newly-created projects

UE - Foundation - Cpp Tools - Hot Reload - Jan 18, 2018

Performing a Rebuild with a hot reload on a brand new code project will fail unless both the Editor and Visual Studio have first been closed and then re-opened. The same result occurs if a Clean is ...

Selecting For Distribution no longer sets configuration to Shipping

UE - Platform - Mobile - Jan 18, 2018

It looks like the change to remove the configuration lock may have changed this behavior, too. It's important to set the configuration to Shipping because otherwise users will ship games accidental ...

Interface Message Call does not work correctly with ExpandEnumAsExecs meta specifier

UE - Gameplay - Blueprint - Jan 18, 2018

When using ExpandEnumAsExecs for the execution of a BlueprintImplementableEvent in a C++ interface, if the interface function is called by message, the result will always be as though you executed t ...

[Feature Request] Cook in the Editor should only save Asset Registry for the cook target platform

UE - Foundation - Core - Cooker - Jan 18, 2018

Request from Licensee: When launch Launching in the editor, it seems that asset registries of platforms other than those specified in Launch are also generated.  LogAssetRegistryGenerator: Startin ...

Launching a packaged game will cause it to open on the leftmost monitor, ignoring your primary monitor

Tools - Jan 17, 2018

A licensee has reported that opening a packaged game in 4.18 and onward will cause the packaged game to appear on their left most monitor, rather than their primary monitor. This was not the case in ...

Primitive Render Mode has bad enum name and tooltip

UE - Graphics Features - Jan 17, 2018

There is an extra option for the Planar Reflections with the Primitive Render Mode that appears to have the tooltip legacy. This issue does not appear to be a regression. Versions Tested: Issue occ ...

Destructible mesh loses collision and physics after packaging in 4.18.2

UE - Simulation - Physics - Destruction - Jan 17, 2018

Destructible Meshes are losing collision and physics after a project has been packaged. They will work normally when running PIE. ...

Lighting Build Fails With High Density Foliage

UE - World Creation - Worldbuilding Tools - Foliage - Jan 16, 2018

Trying to build lighting on a map with high density foliage will fail lighting build or cause the editor to crash. This occurs in 4.15, 4.16, 4.17, and 4.18. There have been multiple reports of this ...

Morph Target Sets to Zero When Transitioning From 1 to -1 Causing Flickering

OLD - Anim - Jan 16, 2018

-Morph target cycles through all values instead of only alternating between 1 and -1 -Couldn't reproduce in 4.17 -attached a test morph target asset Link to example video from user: [Link Removed] ...

RecastNavMesh - Agent Height changes back to default value after project restart

UE - AI - Jan 16, 2018

When trying to change the value of Agent Height under RecastNavMesh-Default it will change back to its default value when you open back up the project. ...