Pawn Velocity dramatically different on server and client with Client Authoritative Position

UE - Gameplay - Sep 28, 2018

The server is not seeing the correct walking animations on each of the clients and after doing some digging, we found that the Pawn->GetVelocity() function is returning something drastically smaller ...

HTML5 Black Screen When Launching on Chrome With Mobile HDR Disabled

UE - Platform - Mobile - Nov 2, 2017

When launching the project with Mobile HDR disabled it launches with a black screen. This occurs in 4.16.3, 4.17.2, 4.18, and Main, from my testing. Launching with Mobile HDR enabled works fine exce ...

Screen Space Widget Component offset in Editor Viewport when using Windows Scaling

UE - Editor - UI Systems - Jul 23, 2018

Using Windows scaling above 100% now causes Screen Space 3D Widgets to be offset. (Pressing F11 for fullscreen or launching will cause widget to appear in correct location) ...

Cascade Beam Emitter Lifetime Module Is Broken

UE - Niagara - Aug 3, 2018

Cascade beam emitter lifetime module is broken.  Working as expected in 4.19 CL# 4033788 Found in 4.20 CL# 4233996, 4.20 CL# 4247867 This is a regression. ...

Translucent Dbuffer Decals not Rendering in Material Editor Preview Window

UE - Rendering Architecture - Materials - Sep 30, 2016

Dbuffer decals with a Translucent Blend Mode are not rendering in the preview window of the Material Editor. Note I noticed the Default Blend Mode for Dbuffer Decals is set to Translucent now inste ...

loading hangs on new level with the new audio engine and media sound components

UE - Audio - Mar 1, 2018

When enabling the AudioDeviceModuleName=AudioMixerXAudio2 setting in the windowsengine.ini file it causes new level loads to lock up. This may be due to the garbage collection stuck in a loop wai ...

Crash when trying to "Update Mesh Section" on any procedural mesh just after "Clear Mesh Section" and "Create Mesh Section" for different vertices and triangles.

OLD - Anim - Jun 15, 2018

the editor Crashes when trying to "Update Mesh Section" on any procedural mesh just after "Clear Mesh Section" and "Create Mesh Section" for different vertices and triangles. Found in 4.19 CL# 4033 ...

TVOS images are throwing errors when attempting to deploy to iTunes Connect

UE - Platform - Mobile - Jan 12, 2017

ERROR ITMS-90471: "Missing Image Asset. Your app is missing the Large App Icon asset 'AppIconSmall' in 'Payload/YourApp.app' is thrown when uploading an TVOS project to the app store. This is likely ...

Always consume mouse wheel for a scroll box does not appear to work when there are not enough items to scroll

UE - Editor - UI Systems - Apr 6, 2017

Always consume mouse wheel for a scroll box does not appear to work when there are not enough items to cause the scroll box to scroll. However, the tool tip says that the mouse input should be consu ...

Always Show Scrollbar does not appear to work when there are not enough items in a scroll box to cause scrolling

UE - Editor - UI Systems - Apr 6, 2017

If the scroll box does not have enough items to cause scrolling, the scroll bar does not show up ...