Vector Parameter Values do not show values with material instances

UE - Graphics Features - Jan 22, 2018

There is an issue where Vector Parameter Values do not show values with material instances. There is a workaround to get the parameter to appear as intended but setting the specific parameters using ...

Component inheritance does not appear to be consistent when running a project with the -game command line argument

UE - Gameplay - Blueprint - Jan 19, 2018

Component property inheritance sometimes does not behave as expected when opening a project with the -game command line argument. Attempting to load a child Blueprint through code may not correctly ...

Editor Crashes when turning on Temporal Upsampling on Mac

UE - Graphics Features - Jan 19, 2018

There is an issue occurring where the editor crashes when turning on Temporal Upsampling on Mac. This issue is not a regression as the feature was added in 4.19 Versions tested: 4.19p1 CL - 3837072 ...

Collision does not work on Static Mesh created from BSP

UE - Simulation - Physics - Jan 19, 2018

After applying a Linear Stair brush to the editor and creating a Static Mesh from that brush, then setting its Collision Preset to BlockAll, the third person character is not able to walk up the sta ...

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 ...

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 ...

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. ...

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. ...

Major performance hit upgrading to 4.18 (game tick time - collision sweeps)

OLD - Anim - Jan 16, 2018

As of 4.18 and onward, collision sweeps related to Character Movement seem to be causing higher tick times than usual. Example project: [Link Removed] Regression?: Yes This did not occur in 4.17 ...