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 ...

nDisplay - DeprojectScreenToWorld alignment is off

Enterprise - nDisplay - Dec 3, 2018

Using nDisplay DeprojectScreenToWorld does not have proper alignment when clicking on the screen.  [Link Removed] ...

Using Volume Materials in a Material Billboard Causes Crash When Used with Volumetric Fog

Rendering - Dec 3, 2018

Using volume material used in a material billboard Causes Crash When used with volumetric fog. Found in 4.19 CL# 4033788, 4.20 CL# 4369336, 4.21 CL# 4541578, 4.22 CL# 4618663 ...

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/ ...

Cannot use "ProjectName (Debug) (ProjectName)" debug configuration in VSCode on Mac with binary Engine installation

Core - Dec 3, 2018

Attempting to debug in VSCode on a Mac using the ProjectName (Debug) (ProjectName) configuration fails due to a missing precompiled file in the binary Engine installation. REGRESSION: No. The same ...

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 ...