Actor Component properties can become "linked" across multiple Blueprints after a hot reload

Gameplay - Components - Dec 3, 2018

If code in an Actor Component class is changed (eg. a new UPROPERTY is added) and a hot reload is performed to implement the changes, the properties in the component can become linked across any Blu ...

Console command "setMouseSensitivity" locks mouse movement to the X axis

Tools - Dec 3, 2018

Using the console to set mouse sensitivity locks mouse movement to the X axis. ...

Set node for a key variable returns "(" instead of "None" when set to none (if not previously set to anything)

Gameplay - Blueprint - Dec 3, 2018

When setting a key variable to none (without setting it to anything else first) the variable will return "(" instead of none ...

Get HMD Worn State does not appear to working as expected for HTC Vive

Virtual Reality - Dec 3, 2018

The Get HMD worn State does not update the worn state when the headset is put on/taken off. Rather it only updates when the headset sleeps or wakes ups. This means that the headset can be taken off/ ...

Device Token can not be Acquired When Remote Notification on iOS

Platform - Mobile - Dec 3, 2018

I received a report that there is a situation in UE 4.21 that it is not possible to acquire push notification device token on iOS And they seem to have solved the problem by fixing the following pa ...

Custom Stencil Is Not Rendering In UI Materials

Rendering - Nov 30, 2018

Widgets with a UI Material that uses Custom Stencil will not render meshes with a set stencil. This is working as expected in 4.19 CL# 4033788. Found in 4.20 CL# 4369336, 4.21 CL# 4541578, and 4.22 ...

Engine crashed during Animation Blueprint compilation with Blend Multi node

Anim - Animation - Nov 30, 2018

Engine crashes if Blend Multi node output is connected to final transition node, and no input is connected to Blend Multi node input parameters. [Image Removed] ...

Packaging that involves a compilation process causes custom icons to not show in the taskbar on Windows in Binary

DevTools - UnrealBuildTool - Nov 30, 2018

Packaging that involves a comilation process in the Binary editor causes custom Windows icons to be ignored in packaged games. This could either be seen in a Code project or in a Blueprint Only proj ...