Static Mesh approximate size can be inconsistent between Content Browser and Static Mesh Editor

Tools - May 3, 2017

The approximate size for a Static Mesh that is shown in the tooltip from hovering over a Static Mesh in the Content Browser and the approximate size shown in the Static Mesh Editor can be inconsiste ...

Hot Reload wipes all elements of UProperty TArrays in Blueprint subclasses

UE - Foundation - Cpp Tools - Hot Reload - Dec 5, 2017

Hot reloading a change that affects a class that contains a TArray UProperty will wipe all of the array elements of any Blueprint subclasses of that class. Regression?: Yes This does not occur in 4 ...

Using ServerTravel <MapName> command with Seamless travel causes level blueprint logic to not run on client

UE - Networking - Jan 14, 2020

When calling the ServerTravel command when using seamless travel, level blueprint logic is not being run on the client side.  NOTE: Adding a small delay (tested with .2 to 2 seconds) after the "B ...

Tessellation no longer working

UE - Graphics Features - Jan 12, 2016

Material Tessellation is no longer working in 4.11 Preview 2, 3, or 4. It is also no currently working in 4.12 Main. Working: 4.10.2 - CL-2818068 Not Working: Tested in Dev-Release CL-2824708 Not ...

Naming an Event Dispatcher the Same as an Overridable Function Corrupts the Event Dispatcher

UE - Gameplay - Blueprint - Oct 21, 2015

Creating an event dispatcher in a widget blueprint with the name OnDrop, which is already an existing overridable function, causes the event dispatcher to become corrupted and prevents it from being ...

Torque curve makes no difference on vehicle movement

UE - Gameplay - Blueprint - Sep 11, 2015

When changing the Torque Curve in a Wheeled Vehicle's Vehicle Movement Component, the values set don't affect the torque of the vehicle. ...

Crash importing FBX

UE - Editor - Content Pipeline - Import and Export - Jan 7, 2015

User reporting as a 4.7 Bug, but no crash report for this bug available for 4.7. Same bug found reported for 4.6.1: Crash Report: [Link Removed] [Code] <unknown module>! KERNELBASE!RaiseExceptio ...

Startup Movies Fail to Play when Audio Devices are Disabled

Tools - Feb 1, 2016

If a user launches a project in Standalone mode and has a Startup movie while the audio devices on the computer are disabled, the movie will fail to play. As soon as you re-enable an audio device, ...

Animations are stuttering in Game Preview Server window

UE - Networking - Jul 27, 2018

When 'Run Dedicated Server' is unchecked and you run PIE with 2 or more clients, all client's animations are stuttering on Game Preview Server window. This does not happen when Run Dedicated Server ...

Standalone Window Size Not Displaying In Fullscreen

Tools - Jun 15, 2016

Setting the standalone window size does not seem to have any effect, and using the -fullscreen parameter does not display the window in fullscreen. Setting the Standalone Window Size to 1920x1080 a ...