Meshes often render or flicker black in one eye on OSVR

UE - Platform - XR - May 6, 2016

Found on: //UE4/Dev-VR CL-2967563 Often, meshes will render completely black in one eye on the OSVR. This seems to affect close meshes more frequently than far away ones. Sometimes the meshes flick ...

Behavior Tree Decorator Not Aborting When Observer Aborts is Set in Behavior Tree

UE - AI - Jun 15, 2016

Behavior Tree Decorators are not aborting when observer aborts is set in the Behavior Tree. Setting Observer Aborts inside of the Decorator blueprint causes it to work as expected. Found in 4.12.2. ...

Shared Material Native Libraries causes packaging for Android to fail

UE - Platform - Mobile - Aug 31, 2017

Packaging for Android with Shared Material Native Libraries (and Share Material Shader Code as it is required to enable the other setting) results in failure from AutomationTool. Logs attached Reg ...

OculusBoundaryComponent crashes when no HMD connected

UE - Platform - XR - Nov 7, 2017

Editor crashes when Oculus boundary component is added without a HMD connected. This was discovered while researching a separate bug report. A user stated that on a project that had been upgraded f ...

Web browser widget not receiving some mouse input information

Chromium - Nov 30, 2017

When using the web browser widget, it appears that some mouse input is ignored. In this example the handles that were working in previous versions of the engine are now ignored and do not receive in ...

Input not recognized from 'Any Key' when set as an Action Mappings Binding

UE - Gameplay - Jul 12, 2018

The 'Any Key' input isn't working when it is assigned in the Axis Mappings menu. If you call 'Any Key' in Blueprint it still functions as intended. This is a regression from 4.19.2 (CL-4033788). T ...

Instance's parameter value for Child BP is not reflected in cooking if parent is nativized

UE - Gameplay - Blueprint - Jul 31, 2018

If an instance of a child BP has a non-default value for its parameters, that value will be ignored in the cooking process if the parent BP is nativized but the child is not and the default value fr ...

Copy+Paste with custom widget seems to "break link" with default values

UE - Editor - UI Systems - Nov 8, 2018

It should be noted that this issue does not occur if you were to create a new "test widget" (by dragging it from the widget list) every time instead of copying and pasting an existing widget. The i ...

Alpha Compression Artifacts

UE - Graphics Features - Nov 23, 2018

Confirmed in Main 4.22 @ CL 4586854 in 4.21 Alpha looks to be about 1 pixel larger than other channels in certain parts of the texture "The issue is not improved by changing compression settin ...

Crash when the location of actor changes while executing SetAnimInstanceClass

OLD - Anim - May 27, 2019

This issue doesn't occur at 4.21. It seems in 4.22 only. Bone is broken in the second SetAnimInstanceClass. It seems CurrentReadComponentTransforms doesn't update. [Workaround] ・Wait using timer ...