BoxCollision component must be simulating physics in order for collision and hit events to work

UE - Simulation - Physics - Jan 30, 2015

BoxCollision component must be simulating physics in order for collision and hit events to work. Note: This testbed doesn't contain print outs of the hit events due to an existing bug with adding e ...

Landscape Grasstype warning causes log spam when landscape is streamed in or out

UE - LD & Modeling - Terrain - Landscape - Nov 16, 2016

Using the Landscape Grasstype will generate log spam for the number of Landscape components being used or if using World Composition will generate a log warning for each tile used. The warning ind ...

Zooming with mouse wheel causes camera to jerk if zooming while the camera sets in a function

UE - Gameplay - Blueprint - Jul 31, 2015

If a collapsed or new function is opened and the mouse wheel scrolled to zoom the viewport camera in or out while setting in the new function, it will continuously jerk back to the original position ...

Player Capsule angular velocity can launch a player when stepping on/off a physics simulated object

UE - Simulation - Physics - Destruction - Mar 24, 2015

Occasionally the player capsule can be launched due to bImpartBaseAngularVelocity being enabled in the CharacterMovementComponent. Disabling this does not result in the character capsule being launc ...

Possessing a vehicle results in unexpected physics behavior

UE - Simulation - Physics - Oct 8, 2015

When possessing a vehicle, if you are standing on top of it with a character, once you begin to drive away, the vehicle will begin to be drawn back towards the character as if it is attached somehow ...

Auto Convex Collision will cause crash when using significantly small meshes

UE - Gameplay - Dec 16, 2015

A hard crash can happen when applying auto convex collision to a complex mesh that is below a certain build scale or screen size. The meshes that cause this have higher poly counts and increasing th ...

Mouse dragging cursor accelerates significantly on Mac

Tools - Jan 18, 2017

This also occurs in 4.14.3 This does not occur on Windows. Could not get this issue to reproduce while recording the screen with quicktime player, but if you experience it in person it really feel ...

Category for BTTask_BuleprintBase does not appear after reopening a project

UE - AI - Feb 9, 2017

Category for a task blueprint(BTTask_BuleprintBase) does not appear in behavior tree's context menu after reopening a project, if the task is not placed in the behavior tree. User needs to open the ...

When change sequence struct parameter, the editor crash.

UE - Anim - Sequencer - Jul 31, 2017

when change sequence struct param, the editor is carash. It occurs in the case of using "Sound Wave", but the same problem occurs when "Sound Cue" is used. Attach application log, and crash dump fil ...

Overriding a Custom function(From Parent) with no return output in a Child Blueprint results in custom function appearing in event graph of child blueprint.

UE - Gameplay - May 30, 2019

Overriding a Custom Function from a Parent Blueprint with no return output in a Child Blueprint results in custom function appearing in event graph of child Blueprint. ...