Unreal Engine Issues
Unreal Engine Issues
Virtual Texture Data GetNumMips reports one fewer mip than expected
UE - Graphics Features - Feb 27, 2025FVirtualTextureBuiltData::GetNumMips() can return 1 fewer mip than it should due to a potential clamping issue at the end of FVirtualTextureBuilderDerivedInfo::InitializeFromBuildSettings() where it ...
BlueprintGetter does not work with or disable AnimGraph Fast Path
OLD - Anim - Jan 23, 2020When used as part of the fast path in an ABP, variable Blueprint Getters are not used. If something with a getter that does not conform to or is supported by fast path, is used then fast path should ...
[Landscape] Multiple Level Instances with Landscape causes duplicate GUID issues.
UE - LD & Modeling - Terrain - Landscape - Jun 18, 2020Loading the same level twice through Load Level Instance BP Node will cause issues with levels containing Landscape as they will end up with the same GUID and the underlying systems do not support t ...
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 - ...
Skel/Vert/Surf Module is spawning sprites at emitter origin
UE - Graphics Features - Nov 7, 2014Even after assigning associated bones and mesh to the module, the emitter is spawning a number of sprites at the emitter origin. See Picture Attached This may be related to an earlier reported iss ...
WMR native plugin trigger axis not working
UE - Platform - XR - Nov 19, 2018We 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 ...
Cannot open Anim Notify Manager
OLD - Anim - Jan 3, 2017Cannot open Anim Notify Manager. Right Click>Manage Notifies doesn't open it and the Manager no longer appears in the Window Menu. Regression: YES Broken: 3224400 (4.14.1) Worked: 3172292 (4. ...
Fbx Importer: Make sure the blendshape curve keys have the correct tangent scale
UE - Anim - Oct 4, 2021The tangent of the blendshape curve seam to have the wrong scale (but correct direction) from this UDN. https://udn.unrealengine.com/s/question/0D54z000079J03OCAS/skip-compressing-anims-and-buildin ...
Rendering out PNG Sequence from Matinee yields Transparent PNGs
Tools - Mar 30, 2015When rendering a movie out as a PNG sequence, the PNGs are all rendered with Transparency and require the addition of a Black layer before the frame can be viewed as in the Matinee. Went back and t ...
Media Player not updating when IMG Media Source files are changed
Media Framework - Aug 20, 2020Images in a sequence path for an Img Media Source are not updating without restarting the project. Changing the path itself appears to work as expected. Tested in versions 4.22.3(CL 7053642), 4. ...