Having a project for iOS set to only allow Landscape Right with show incorrectly on an iOS device

UE - Platform - Mobile - Jan 23, 2015

When you are packaging and deploying your project to an iOS device, If Supports Landscape Right orientation is the only Orientation checked, It will show incorrectly on the iOS device. Tested on an ...

Custom Stencil Buffer Visualization Doesn't Render Custom Stencil Depth

UE - Graphics Features - Feb 6, 2020

The Buffer Visualization (Custom Stencil ) doesn't render assets that have "Render CustomDepth Pass" enabled. Found in 4.24.2 CL#10758860 Reproduced in 4.23.1 CL#9631420, 4.25 Main CL#11223911 ...

Keep Simulation Changes Not Saving Values After Physics Simulation

UE - Gameplay - Blueprint - Oct 1, 2015

Simulating your level and then attempting to use the Keep Simulation Changes option on an actor that has simulated physics gives the No Properties Copied error. Occurs in 4.9.2 binary and Main CL ...

Play Rates are not reverted when HAP Media Plugin is disabled

Media Framework - Nov 11, 2019

Enabling the HAP Media player plugin permanently affects the thinned Play Rates of the Media Player asset. Tested in 4.23.1 (CL - 9631420), 4.24.0 (CL - 10091930), 4.25 (CL - 10091038) ...

Drastic increase in FBX import times from 4.9 to 4.10

Tools - Dec 9, 2015

The attached asset (including animation) takes 9 minutes to import in 4.10, where it takes 42 seconds in 4.8 and 4.9. You don't really notice this until you start to get up to larger assets or long ...

Disabling Editor Sounds Doesn't Prevent Compile Sound From Playing

Tools - Nov 10, 2015

Disabling the Editor Sounds under Editor Preferences->Level Editor->Miscellaneous->Sound->Enable Editor Sounds doesn't stop the Compile sound from playing when you click the Compile button in the ed ...

GetAssetRegistry by class and subclass only works for Material data types

UE - Gameplay - Oct 16, 2018

The GetAssetRegistry blueprint node only produces the asset data for the Material class and its subclasses. It completely ignores the asset data for Actor, derived Actor class Blueprints, and the su ...

IsTraceHandleValid with default FTraceHandles has unexpected behavior on the first frame

UE - Simulation - Physics - Sep 18, 2018

Because both FWorldAsyncTraceState's CurrentFrame and FTraceHandle are default initialized to 0, on the first frame, if a new Asnc Trace starts all default FTraceHandles will reference the same (now ...

Moving Child Object in Local Space Causes Flickering

Tools - Jun 30, 2016

When moving an object in the viewport that is parented to another object with a scale of -1,1,1, the child object will flicker. This is a regression, this did not occur in the 4.11.2 binary release ...

Crash upon attempting to load into session via Join Session in Blueprints on iOS

UE - Networking - Aug 8, 2018

Joining a session on iOS using the Join Session node in Blueprints causes a crash on iOS. This is similar to [Link Removed] but was requested to be entered separately. This has not been reproduced ...