Unreal Engine Issues

Flickering with foliage occurs when setting the world origin point

There is an issue with flickering with foliage that occurs when setting the world origin point. This issue does not appear to be a regression. Versions Tested: Issue occurs in all versions tested 4 ...

Oculus CheckIfPointWithinPlayArea function returns incorrect results

Oculus CheckIfPointWithinPlayArea function returns incorrect results, always reporting true whether or not the hand is inside the play area or not.  The distance and closest point also seem incorrec ...

4.14 fails to launch on macOS High Sierra

The engine will crash in `FMacPlatformSplash::Show()` when trying to launch on macOS High Sierra. ...

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

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. ...

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

-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] ...

Lighting Build Fails With High Density Foliage

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 ...

Destructible mesh loses collision and physics after packaging in 4.18.2

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

Landscape cooking takes as much as 6 times longer in 4.18

Some developers are finding that the change to add a bunch of shader types to FLandscapeMaterialResource::GetExcludedShaderTypes() in 4.18.2 increased their project cooking times on PC or console by ...

Cine camera doesn't expose the bConstrainAspectRatio toggle in the details panel

In Pose Pin Does Not Immediately Appear for Sub Anim Instance Node

The Sub Anim Instance pin does not appear automatically when the Anim Blueprints are connected in the order listed above. If done in another order the "In Pose" pin appears. ...