Unreal Engine Issues
Unreal Engine Issues
D3D Device Lost 'HUNG' crash in FD3D11Viewport::PresentChecked
UE - Graphics Features - Oct 31, 2016This is a new D3D crash affecting multiple users in 4.14 Preview 1. It is currently the #1 crash in the Preview. Information provided by users:Just pressed create project...Openning QA Game with - ...
meta specifier ArrayClamp does not work with array in struct
UE - Gameplay - Blueprint - Sep 14, 2016Giving an int32 variable the specific ArrayClamp has no affect when the specified array is defined inside a USTRUCT(). Variable is able to be set to a value outside of specified struct's range. ...
Changes in Scale are not replicated on the Client through RPCs
UE - Networking - Apr 27, 2015Changes in Scale are not replicated on the Client through RPCs. Location and Rotation are replicated as expected. Reproduced in 4.7.6 binary and Main (//depot/UE4/Promotable-CL-2522625) ...
GPU particles are not showing on Metal / iOS
UE - Graphics Features - Feb 27, 2015If you place a GPU particle into your project and deploy to an iOS device that supports metal, the asset will not show correctly on the device. I have attached the assets that were used to this rep ...
Painted Landscapes have blacked out sections when deployed to a mobile device
UE - LD & Modeling - Terrain - Landscape - Mar 24, 2015If a user uses a multi layered material to pain a landscape and then deploys this project to an iPhone 6 plus our an Android Samsung Galaxy Note3 (SM-N9005) parts of the landscape will appear to be ...
Eject camera (and ToggleDebugCamera) do not have full look controls in the Topdown template
UE - Gameplay - May 7, 2015The Eject camera (and ToggleDebugCamera) do not have full look controls in the Topdown template.In 4.7.6 the look is limited in both cameras by the mouse movement.In Main, both are limited as mentio ...
Billboards not displaying in PIE or Standalone game with Orthographic Camera
UE - Graphics Features - Mar 24, 2015When placing a billboard in a level (via a blueprint) with an orthographic camera, the billboard will not be rendered unless a significant distance in front of camera, comparing 4.61 project with th ...
"Convert to Blueprint" removes ability to edit component properties
UE - Gameplay - Blueprint - Dec 4, 2018As noted by the user in the linked UDN question, this seems to be a problem with the PointLightComponent property on APointLight not having the VisibleAnywhere property descriptor. Also as noted, th ...
Real-Time Collision for Spline Mesh Not Working in Packaged Game
UE - LD & Modeling - Terrain - Landscape - Feb 23, 2016When attempting to dynamically set the collision of a Spline Mesh component, the collision settings are not kept in a packaged game. Found in 4.10.4. Reproduced in 4.11 Preview 6 and Main CL 28772 ...
Build crash when enabling r.CreateShadersOnLoad=1
UE - Rendering - Architecture - Shaders - Nov 10, 2025When "r.CreateShadersOnLoad" is enabled, cooking will crash due to failure to create a shader. This occurs on //UE5/Release-5.5, CL: 41545209 and //UE5/Release-5.6, CL: 45232827 ...