Material Function CylindricalUVs is missing the Object Position

Docs - Samples - Sep 29, 2014

The Material Fucntion CylindricalUVs is missing the Object Position node ADDITIONAL NOTES: You can see the UVs wrapping around 0,0,0 without the position node attached, instead of the mesh's pos ...

Particle Sprites Location jumps when Engine delta time stutters

UE - Graphics Features - Feb 11, 2015

Particle Sprites will jump forward in level when engine delta time stutters due to a instant pushed rendering queue. [Link Removed] ...

UUserWidget::bIsFocusable serialization issues

UE - Editor - UI Systems - Mar 29, 2016

See repro steps. Workaround Unset and set bIsFocusable on widget's class will allow bIsFocusable to be set and persist on the nested instance. ...

Users custom AI-heavy project crashes if anything is Built

UE - Gameplay - Feb 2, 2015

Users custom AI project crashes if anything is Built. (All, Lighting, Geometry, etc.) The project can be played but receives a message during play that the Navmesh needs to be rebuilt. ...

Child BPs created from Parent BPs that include nodes attached to the Event BeginPlay, Event ActorBeginOverlap, or Event Tick nodes include a Parent call in the Event Graph by default

UE - Gameplay - Blueprint - Mar 7, 2015

Child BPs created from Parent BPs that include nodes attached to the Event BeginPlay, Event ActorBeginOverlap, or Event Tick nodes include a Parent call in the Event Graph by default. This is incons ...

Procedural Sound Wave Fails to Play when returning 0 bytes in GeneratePCMData callback

UE - Audio - Aug 2, 2016

Returning 0 bytes in GeneratePCMData results in the procedural sound wave not continuing to play audio. Instead of returning 0, we need to return an empty buffer if the procedural sound wave doesn't ...

Windows Package for Linux fails missing CrashReportClient-Linux-Shipping.target receipt

UE - Foundation - Build - Rocket (Installed Engine) - Aug 4, 2016

Packaging a Blueprint project from Windows Binary for Linux fails with the following error: UATHelper: Packaging (Linux): Program.Main: ERROR: AutomationTool terminated with exception: AutomationTo ...

Text/value is not highlighted when selecting slider fields in details

UE - Editor - UI Systems - Slate - Apr 22, 2016

Text/value is not highlighted when selecting slider fields in details This is extremely irritating in cascade and basically breaks usability. Does not occur in 4.11 Tags: Scrub Scrubbing value t ...

UMG text does not update text when loading save game in real time

UE - Editor - UI Systems - Localization - Nov 25, 2015

If a project is utilizing load/save game features and attempts to print that load/save game's text information to a text box in UMG, the text box will not update in real time. ...

Static Bool Parameters not Visible on Material Instances by Default when passed through a Quality Switch Node

UE - Graphics Features - May 4, 2016

When feeding a 'Static Bool Parameter' through a 'Quality Switch' node within the material editor, the material instance for said parameter does not appear until the 'Params' button is enabled. If ...