A point light's source length appears to be 0 if too many are on screen at once

UE - Graphics Features - Feb 15, 2016

If a user places too many point lights on screen at once with a source length greater than 0 it will appear as though the length is 0 ...

Physical materials cannot be queried

UE - Rendering - Architecture - Materials - Feb 12, 2015

Physical materials placed on starter content shapes always return as invalid for any trace or collision query. ...

Return node pins lose connection after copy and pasting

UE - Gameplay - Blueprint - Feb 15, 2016

If the user copies and pastes nodes connecting to a return node in a function then the pins on the return node will become disconnected. ...

Failing to compile will cause blueprint variables to reset to their default values

UE - Gameplay - Blueprint - Jan 18, 2016

If a user creates a variable and sets it to a value that is not the default and then gets an error that prevents the blueprint from compiling, this will cause the variable to be reset to it's defaul ...

Struct crashes when switching variable types while the default values are being shown

Tools - Jan 11, 2016

If the user switches between two variable types in a struct while the default values are being shown then the editor will crash ...

Cannot copy and past from a multi-line text box after being launched to a web browser

UE - Platform - Mobile - Dec 28, 2015

The user can not copy and past text from a multi-line editable text box after it has been launched onto a web browser. As a note, it is is possible to copy and paste when the widget is used in the e ...

Calling the node Show External login UI with the With the Enable Google play support checked on a Samsung S5 will cause the app to crash

UE - Platform - Mobile - Dec 23, 2015

If the user is using a Samsung S5 and attempts to use the "Show External login UI" node with the Google play Support turned on in the project settings then the app will crash when packaged onto the ...

Navigation becomes incorrect after flipping a widget via scaling (-1)

UE - Editor - UI Systems - Dec 22, 2015

If the user flips a widget using the scaling feature in umg (scaling the widget by -1) this will cause the navigation for the widget to becomes incorrect. ...

Game does not gain focus when launching

Tools - Dec 22, 2014

Launching standalone or a packaged game that forces fullscreen at launch does not gain control of mouse/keyboard input until after the screen is clicked on. ...

Altering interface outputs/inputs causes compile errors on blueprints calling interface

UE - Gameplay - Blueprint - Sep 4, 2015

If an interface is called in a blueprint and then altered, the blueprint will receive a compile error until the interface is removed and re-implemented. ...