Unreal Engine Issues
Unreal Engine Issues
[ CATIA ] Datasmith Error importing part from CATIA v5
UE - Editor - Content Pipeline - Datasmith - Importer - Jul 27, 2018When importing the attached CATIAv5-file Screw.CATpart via Datasmith, The following error is recieved: LogDatasmithImport: Warning: Failed to import '../../../../../../Screw.CATPart'. Failed to cre ...
Packaging a runtime plugin in a Blueprint project causes some Editor files to be deleted
UE - Foundation - Cpp Tools - Oct 22, 2018Attempting to package a runtime plugin (does not occur with a Development plugin) in a Blueprint project fails in 4.21 Preview 2. This also causes some Editor files to be deleted, including the Modu ...
Project no longer builds when .cc file is included in the project
UE - Foundation - Cpp Tools - Jan 15, 2019Including files with a .cc extension instead of .cpp in a code project used to build fine in Visual Studio. This is no longer the case in 4.21.2. The error message that results indicates that only C ...
Slow while replacing actor in large open world
UE - DEET - EditorPerformance - Nov 8, 2022Licensee: "Content creators from my team have reported that when they replace actors in an open world it can take more than 10 seconds. This is with several thousand actors loaded in the world. On m ...
[AI] Navmesh tiles on different layers get removed while streaming out in WP Dynamic Modifiers Only navmesh
UE - AI - Navigation - Feb 6, 2025Streaming out the navmesh and streaming the area back into the world before the GC runs causes the navmesh streamed back into the world to only have navmesh tiles on a layer with tiles that would b ...
Rect light LTC textures fail to load when cooking with bSharedLinearTextureEncoding enabled
UE - Texture - Apr 2, 2025When running a build with bSharedLinearTextureEncoding enabled, View.GGXLTCMatTexture and View.GGXLTCAmpTexture are pointing at the black texture fallback, which affects correctness of rect lighting ...
Preview Meshes in Material Instances lose their association to material on close.
UE - Rendering Architecture - Materials - Aug 13, 2015When you assign a Preview Mesh to a Material Instance, save and close the instance, on reopening instance, the Preview Mesh will not retain connection to the Instance and will revert back to its ass ...
Setting scale to 0 in any direction breaks overlap events
UE - Simulation - Physics - May 26, 2015When the scale of an actor is set to 0 in either X, Y or Z any overlap events will fail to trigger overlap events. ...
[MAC][OPENGL][METAL]: Investigate why planar reflections on translucent surfaces may not be working
Tools - Jun 29, 2015See Comments. User reported planar reflections aren't being applied to translucent materials on Mac OpenGL, which may also affect Linux OpenGL and Mac Metal. Need to investigate what this feature r ...
Linux Slate Dialogs tga files do not have an image icon
UE - Platform - Linux - Jan 8, 2016TGA files do not have an image icon like the JPG files do in the Slate Dialogs in Linux. ...