Actors spawned at runtime and moving via SetActorLocation do not generate hit events with static objects

UE - Simulation - Physics - Feb 1, 2016

When an actor that is spawned at runtime is moved via SetActorLocation and collides with a static object, no hit events will be fired. If the same static actor begins simulating physics, the dynamic ...

Planar Reflections do not appear to cull based on the view frustum

UE - Graphics Features - Oct 27, 2016

View Frustum and Occlusion culling do not appear to work for Planar Reflections though the stats in PIE seems to indicate otherwise. I've attached two gifs showing View Frustum and Occlusion chec ...

Numpad keys don't respond to input commands on Linux

UE - Platform - Linux - Aug 31, 2015

Setting any of the numpad keys to an input command does not execute the command on Linux. ...

SceneCapture2D Actor using SceneDepth in R not Working as Expected

UE - Graphics Features - Oct 14, 2016

The new SceneCapture2d feature 'SceneDepth in R' is not rendering the scenes depth in both Perspective and Orthographic projections as expected. The user originally mentioned he was using Orthograp ...

Migrating a blueprint based on a custom class breaks after migration

UE - Gameplay - Blueprint - Sep 21, 2015

When a blueprint that is based on a custom class is migrated from one project to another the references to the original class are held. This means that the blueprint is unusable in the new project, ...

GPU Particle collision Ignores 2D Sprite Collision

UE - Graphics Features - Jan 19, 2016

GPU Particle sprites will collide with a paper 2D assets texture but not the collision box. ...

Copying a Static Mesh actor from the level and pasting it into a Blueprint as a component does not retain any of the values of the copied actor

UE - Gameplay - Blueprint - Aug 4, 2015

Copying a Static Mesh actor from the level and pasting it into a Blueprint as a component does not retain any of the values of the copied actor. Reproduced in 4.7.6 binary, 4.9 Release (//depot/UE4 ...

Changing Time Dilation at runtime causes erratic physics with Vehicles

UE - Simulation - Physics - Oct 20, 2015

When changing Time Dilation settings at runtime, it can cause vehicles to be thrown into the air and exhibit other odd physics behavior. This issue occurs when the Time Dilation is being set from sl ...

Updating project to 4.12 corrupts Additive AimOffset thumbnail, causing log spam

OLD - Anim - Jun 6, 2016

Updating project to 4.12 corrupts Additive AimOffset thumbnail, causing log spamLogAnimation:Warning: Setting an additive animation (Owen_AimOffset) on an AnimSingleNodeInstance is not allowed. This ...

Significant Frame Rate Drop When Multiple Persona Windows Docked in the Background

OLD - Anim - Dec 5, 2014

Windows: Opening a persona window causes the editor to lose approximately 10fps per window (4 persona windows open = -40fps) Even when docked and running in the background. Mac: Opening a persona w ...