Crash when viewing Lightmap Density mode and with Vert

UE - Graphics Features - Oct 15, 2015

If the option in Project Settings for Accurate Velocities from Vertex Deformation is enabled and then using the View Mode for Lightmap Density you will get a hard crash. ...

Attached Project Crashes on PIE and when Compiling or Attempting to Delete Third Person Character BP

UE - Gameplay - Blueprint - Nov 20, 2015

In the attached project, there are crashes that occur in a few instances. When you open the Third Person Character BP, compiling or attempting to delete it will cause the editor to crash. Also, atte ...

GenerateKDopAsSimpleCollision() clamps vertices that are close to the origin which results in inaccurate primitives

UE - Gameplay - Nov 10, 2015

When DOP simplified collision is generated for a mesh that has vertices that are close to the origin, part of the function till clamp any values between -0.5 and 0.5 to be 0.5 which will cause the r ...

Significant Performance Drop During Play While Behavior Tree is Open

UE - AI - May 18, 2016

Attempting to play in editor, standalone, or VR Preview when a behavior tree that is running is open will cause a significant performance decrease. The framerate drops from ~120 to ~80 fps while the ...

Ensure triggered with multiple AddInstance() calls for InstancedStaticMeshComponent

UE - Graphics Features - May 20, 2016

Adding multiple instances to instance static mesh component in a code class causes an ensure to trigger when an instance of the class is added to the level. ...

Modulated Shadows on IOS cause flickering on Skeletal Meshes

UE - Platform - Mobile - Feb 10, 2016

Modulated shadows are not functioning properly on IOS devices for skeletal meshes. Any skeletal meshes in the scene will cast a shadow, but have a flickering modulated shadow on the skeletal mesh as ...

ETC2 Android devices are no longer supported in the Google Play Store as of 4.14

UE - Platform - Mobile - Nov 29, 2016

When uploading ETC2 packages to Google Play Store, it shows that 10712 devices were removed as supported devices and 332 remain. They did state in their AnswerHub that the unsupported devices still ...

Sequencer does not refresh on creating a new camera if Default Property Tracks is empty

UE - Anim - Sequencer - Jan 24, 2017

If CineCameraActor's Default Property Tracks setting is empty, doing add camera in sequencer does not update the content of Sequencer. One needs to close then reopen Sequencer to see the added Camer ...

Player Controller does not handle multiple CharacterMovement movement modes

UE - Gameplay - Blueprint - Feb 6, 2018

From Bug Submission: The variable in the image I attached is unable to distinguish between multiple characters all possessed by the same player controller. So if one character has this variable set ...

Blueprint deleting Variables, kills function parameter shortcuts with same name

UE - Gameplay - Blueprint - Apr 4, 2018

When deleting a variable that shares a name with a function parameter. The references to the function will be deleted as well. ...