Unreal Engine Issues
Unreal Engine Issues
Viewport stuttering during orbit/zoom navigation
UE - Rendering - Features - Dec 17, 2025Received a report of persistent stutters in the editor when trying to navigate in the viewport, including asset editor viewports like the Skeletal mesh editor and control rig editor. Hardware used ...
Patterns On Landscape Spline Normals
UE - Graphics Tools - Terrain - Oct 31, 2025On higher-density Landscapes, Landscape Splines can lead to patterned artifacts in the geometry normals. Also tested on //UE/Release-5.6, CL:45232827 ...
Cannot resize comment box when new comment is created on top
UE - Rendering - Architecture - Materials - Apr 27, 2017Cannot resize comment box when a new comment is created on top. The resizing affects the bottom right corner. This issue is dependent on how the comment is added if comment 1 is highlighted and a ne ...
Setting capsule height on the Server is not replicated to the Client while the Server character is moving
UE - Networking - Jun 18, 2015Crouching on the Server is not replicated to the Client while the Server character is moving. Reproduced in 4.7.6, 4.8.0, and Main (//depot/UE4/Promotable-CL-2591224) ...
Traces to Spawned Destructible Mesh Actors returning inconsistent results
UE - Simulation - Physics - Destruction - Jun 18, 2015When spawning an Actor containing a Destructible Mesh and immediately doing a sphere trace to that actor, upon repeated spawns you will get False results for some time then True results for a while ...
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 ...