Vulkan is crashing on S7 Mali

UE - Platform - Mobile - Mar 10, 2017

Projects packaged for Android using Vulkan are crashing on S7 Mali devices. This is not happening in 4.14. ...

Flight stick input is not read consistantly

UE - Gameplay - Input - Apr 3, 2017

When using a flight stick as a raw input device, GenericUSBController Button # blueprint events will sometimes not be registered when clicked. In local testing, this occurred roughly once for every ...

Gridlines Draw On Top of any sprite or mesh with a Translucent material in an orthographic viewport

UE - Graphics Features - Jul 10, 2017

When viewing Translucent Sprites or Unlit Translucent assets while in Lit viewmode, the viewport grid always draws on top of the object(s). ...

Skeletal mesh collision skewed on mirrored meshes

UE - Simulation - Physics - Jan 9, 2018

[Link Removed] Collision on mirrored skeletal mesh does not match mesh. (has same position, but different orientation) Also occurs on latest (3827667) Also tested and occurring with Skeletal Mesh ...

Aperture Value in Lens category of CineCamera has no effect

UE - Graphics Features - Mar 15, 2018

Aperture Value in Lens category has no effect ...

Extreme hitching when using profile command (stat startfile) + other stat commands

UE - Foundation - Core - Apr 19, 2018

Running the "stat startfile" command in a 4.19 project causes constant editor hitching. Running the same command in a 4.18 project does not produce any hitching by comparison. ...

Sequencer 3D Trajectories run very slow on deep hierarchies

UE - Anim - Sequencer - Aug 27, 2018

Using a Level Sequence with deep hierarchies causes the FPS to drop to low numbers when they are all selected within the Sequence. This is a regression from 4.19.2 (CL-4033788). This issue was repo ...

Showing black screen when drawing Distortion and DOF on Android

UE - Platform - Mobile - Jan 13, 2019

[Link Removed]I think it is because that the "bOnChipSunMask " is false as Distortion activated (MobileShadingRenderer.cpp line 378),  the "UseFetch" is true as the Android device support shader fra ...

WMR native plugin trigger axis not working

UE - Platform - XR - Nov 19, 2018

We are testing the new Windows Mixed Reality native support and have found that the trigger mapping to a button is working, but the trigger mapping to an axis is not, i.e. the event MotionController ...

Enum editor not adding new enum values

UE - Gameplay - Jul 22, 2019

Blueprint enumeration editor is not adding new enum values. ...