Web Browser: No Transparency in 3D Widget Component on Mobile

UE - Platform - Mobile - Jul 6, 2018

Transparency is not being applied to web browser inside of 3d widget on android. Tested with Samsung Galaxy S5 4.19.2 CL 4033788 4.20p5 4173640 4.21 CL 4179794 ...

Duplicate .so files in GoogleVR.

UE - Platform - XR - Jun 2, 2017

A licensee recently pointed out that there are now several GoogleVR lib files in 4.16 that are present in the Engine twice due to some of them being copied into a subdirectory. For example, , in 4.1 ...

PhysX errors when packaging for x86

UE - Platform - Mobile - Oct 27, 2016

Packaging for x86 in ETC1 will generate PhysX errors and cause the package to fail. The following error will occur multiple times throughout the package:UATHelper: Packaging (Android (ETC1)): Unrea ...

GoogleVR apps prevent adjusting the volume for the phone while running

UE - Platform - XR - Oct 3, 2016

4.13.1 has caused an issue where the volume can no longer be adjusted for a GoogleVR application. This is a regression of functionality in 4.13.0. Tested with build: Working: 4.13.0 Binary CL-310 ...

ARCore blank black screen when showing planes [Galaxy S9+]

UE - Platform - XR - Mar 7, 2022

Checking block/fail tests for ARCore on Android. Packaging ARDebugCheck to test that planes appear on screen reveals that they do not correctly appear. Settings have been confirmed per testrail and ...

Getting Fullscreen or Windowed Resolutions doesn't fully execute on Linux

UE - Rendering Architecture - RHI - Oct 28, 2019

When using "Get Supported Fullscreen Resolutions" on UE when built with Vulkan, no values are printed out. This is an issue with any platform that builds UE with -vulkan, not just Linux.  In Engine ...

Landscape Visibility Mask Rendering with Missing Landscape Components when Deployed to Mobile Device

UE - Graphics Features - Apr 8, 2015

Landscape Material renders with missing components when using a 'Landscape Visibility Mask' and deploying to a mobile device. I have found this issue now with an Android and iOS device. I was able ...

Touch position return wrong value if the orientation of the terminal is changed after startup

UE - Platform - Mobile - Jan 26, 2022

Touch position return wrong data on Pixel 6 and Android 12. it does not occur unless the device is rotated from the initial state. As far as I investigate, the touch position only return data from ...

Phones with no magnetometer -> GetInputMotionState returns all 0s

UE - Platform - Mobile - May 23, 2018

Bug submission from a user overseas: " On some devices (Moto G5 Plus, Moto G5 S Plus) the values are always 0 like : Tilt : 0.00.00.0 RotationRate : 0.00.00.0 Gravity : 0.00.00.0 Accleration : 0.00 ...

Texture Artifacts on Cubemaps using Default Compression when Packaged for ASTC

UE - Platform - Mobile - Oct 26, 2016

Cubemaps using Default texture compression (DXT1) and packaged for Android ASTC will render with artifacts on the seams where the DDS cubemap was stitched together. "Cubemaps set to HDR/HDR compre ...