iOS movie (mp4) has no sound in the playback.

UE - Platform - Mobile - May 16, 2017

There is no sound in the movie play in iOS, built with 4.16 GitHub source code version. you can simply reproduce using attached sample project. This is reproduced in iPhone 5s(10.3.1) iPhone 6(iOS ...

Error on Attempting to Save Map Containing Actor Sequence Component

UE - Anim - Sequencer - Sep 28, 2017

colored text+Link to screencast of repro steps: + [Link Removed] -May take some clicking around even between windows -Will not save after this -Does not affect 4.16 ...

Attempting to connect to Perforce source control causes a crash

Tools - Oct 16, 2015

Selecting Perforce from the list of source control options will cause the editor to crash. Crash Reporter [Link Removed] May also be the same as: [Link Removed] REGRESSION? Yes. Issue did not occ ...

Sequencer capture movie rendering is issue.

UE - Anim - Sequencer - Jul 13, 2017

This problem always occured in 4.16.0, 4.16.2. It does not occur 4.15.3. ・Reproduction Project Linkhttps://udn.unrealengine.com/storage/attachments/299111-captureerror-416.zip ...

Float RGBA Framebuffer rendering settings changes UI

UE - Editor - UI Systems - Slate - Nov 11, 2019

When changing the rendering Frame Buffer Pixel setting from "10 bit RGB 2 bit alpha" to "Float RGBA".  The Editor's UI will change.  (Please see the attached screenshots for comparison) ...

D3D Device Lost 'HUNG' crash in FD3D11Viewport::PresentChecked

UE - Graphics Features - Oct 31, 2016

This is a new D3D crash affecting multiple users in 4.14 Preview 1. It is currently the #1 crash in the Preview. Information provided by users:Just pressed create project...Openning QA Game with - ...

Android devices are not opening video source files

UE - Platform - Mobile - Jan 10, 2018

There is an issue when packaging and launching onto an andorid device in version 4.18 where Android devices are not opening video source files, playing the level on the device shows only a black scr ...

All Classes Tab of Modes Panel Not Updating Automatically

Tools - Jun 2, 2016

Blueprints are not appearing in the All Classes tab of the modes panel after being loaded until the tab is switched. Found in 4.12 binary. Reproduced in 4.11.2 binary and Main CL 2994701. ...

ODSC - Launching a newly created project via UnrealFrontend fails to load some materials and crashes

UE - Rendering Architecture - Materials - Sep 6, 2021

The same repro steps on 4.26.2 will launch the project successfully. Packaging a project once to create complete ShaderMaps will work around the issue. ...

Skeletal mesh with SetTickableWhenPaused causes crash on pause

UE - Gameplay - Jul 31, 2015

If a skeletal mesh component is has SetTickableWhenPaused set to true then the editor will crash when the game is paused. This happens when set in blueprint or code. ...