BeginOcclusionTests called twice in ProfileGPU report during VRPreview

UE - Platform - XR - Mar 23, 2017

When running in VRPreview and entering the 'ProfileGPU' command, 'BeginOcclusionTests' is listed twice. As the licensee mentioned, if a project uses heavy occlusion this could quickly become a cost ...

Landscape Distance Fields artifacts when using DX12

UE - Graphics Features - Apr 13, 2021

This problem was reported in this UDN:https://udn.unrealengine.com/s/question/0D52L00005PbEYNSA3/landscape-distance-fields-artifacts?fromCase=1 ...

The origin appears to shift for 3D widgets when the anchors (in the widget blueprint) and the pivot (in the widget component) are changed

UE - Editor - UI Systems - Nov 17, 2015

If The user is using an anchor that is not the top left and then changes the pivot of a widget component the result is a 3D widget that has an offset origin making it very difficult to interact with ...

HTTP Module can wait indefinitely (or at least minutes) when shutting down on outstanding requests

UE - Online - Jun 28, 2017

https://udn.unrealengine.com/questions/378873/bug-datarouterolepicgamescom-requests-should-be-ca.html?childToView=379014#answer-379014 ...

Light shaft smear color due to TAA bleeding

UE - Graphics Features - Feb 10, 2020

See https://udn.unrealengine.com/questions/553031/volumetric-fog-bug.html?childToView=554676#answer-554676 ...

'Render static' flag crashes editor in OpenGL ES3.1 shader complexity view mode

UE - Platform - Mobile - Mar 19, 2020

https://udn.unrealengine.com/questions/563316/render-static-flag-crashes-editor-in-opengl-es31-s.html ...

Indirect lighting cache generates points inside interpenetrating static meshes

UE - Graphics Features - Jun 10, 2015

Seems to be an issue with the indirect lighting cache where if you have interpenetrating static meshes (for example static mesh rocks that make up the ground), there are cases where the cache points ...

Move call to Actor::UninitializeComponents outside of if (bActorInitialized) in Actor::RouteEndPlay.

UE - Gameplay - Feb 26, 2016

https://udn.unrealengine.com/questions/280656/actorcomponentuninitializecomponent-isnt-called-wh.html Move call to Actor::UninitializeComponents outside of if (bActorInitialized) in Actor::RouteEnd ...

UnrealPak hangs when creating a pak file on Mac

UE - Platform - Apple - Oct 23, 2015

Reported by users and seen once by myself. For a project which can exhibit this see: https://udn.unrealengine.com/questions/265039/example-project-for-ios-build-hang-and-poor-modula.html ...

Timer significantly lowers FPS as compared to tick running the same function

UE - Gameplay - May 1, 2015

Timers set to a low time setting, but that are not set lower than tick, have a significant impact on FPS as compared to tick when updated a large number of objects at the same time. ...