Rotating a button in UMG and moving it to the edge of the canvas causing incorrect clipping

UE - Editor - UI Systems - Oct 27, 2014

When rotating a button in the UMG blueprints and then moving through the edge of the canvas panel it causing the button to clip as though it was never rotated. Update: This also happens when placi ...

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. ...

Special modifier key inputs do not register in editor if the key press occurs instantly

Tools - Mar 1, 2016

Special function key presses and hotkey shortcuts do not register in the editor if they fire key presses instantaneously (0ms). In particular, TypeMatrix keyboards reproduce this error using keyboar ...

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 ...

Macro Libraries do not update after rename

UE - Gameplay - Blueprint - Jan 21, 2015

Macro Libraries can only be called by their original name, even after being renamed to something different. ...

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 ...

FBX imports incorrect vertex normals in 4.7

UE - Graphics Features - Mar 2, 2015

Box reflection captures with some assets are not working correctly. The reflection capture is being tiled with version after 4.7 that were not in 4.6. Images are attached to demonstrate along with ...

Crash: Using Sequencer to attach an actor with multiple skeletal mesh components crashes the editor

UE - Anim - Sequencer - Nov 30, 2016

When using an Attach track in sequencer to attach an actor that contains more than one skeletal mesh component, the UI to choose which mesh component to attach to pops up, but then the editor hangs ...

Differences in Auto-Exposure between Editor PIE and Packaged Build for VR

UE - Platform - XR - Apr 3, 2017

A licensee is reporting a difference in auto-exposure brightness levels between PIE and a Packaged project. He is working in VR, but since I was not able to reproduce the issue on my end it is hard ...