Unreal Engine Issues
Unreal Engine Issues
Getting Vector Parameter Values from a Dynamic Material Instance with 1 or more vector parameters returns an empty array
UE - Rendering Architecture - Materials - Jan 3, 2023This is not a regression. Tested in //UE5/Release-5.0 CL20979098 The array for Vector Parameters isn't getting populated when called from a Dynamic Material Instance. ...
Enabling Preview Rendering Level Mobile GLES3.1 on Map With Vector Fields Results in Editor Crash
UE - Platform - Mobile - May 21, 2018Reproduced Crash on 4.18.3, 4.19.2, and Main CL 4081612. Licensee states: Based on a quick inspection of the code, it seems FVectorFieldVisualizationVertexFactory::ShouldCache() returns false (req ...
Crash occurs in Hierarchical Instanced Static Mesh of Mesh with MinLOD set to 1 or higher
UE - Graphics Features - Oct 22, 2020I have attached a reproduction project with the above settings.[Link Removed] It crashes when packaged, launched and moved in-game. This issue seems to occur when there is an object in the Unbuilt ...
Making the viewport fullscreen while Application scale is a value other than 1.0 results in a zoomed in/out viewport
Tools - Jan 11, 2017When using Application Scale in the editor, using F11 to make the viewport fullscreen results in an either zoomed in or zoomed out fullscreen version. Note: This same issue occurs when using a comb ...
UAssetImportTask::bReplaceExisting is not supported with interchange
UE - Editor - Content Pipeline - Import and Export - Aug 25, 2023Add this code to a function you call from a blue utility widget or any other way to start the import with this code.TArray<UAssetImportTask*> ImportTasks; for (int32 i = 0; i < cFC.Files.Num(); i++) ...
Crash on setting Material in Element 1 of Combined Mesh
Tools - Mar 19, 2015Crash on clearing or setting the second or third material slot in the Static Mesh Editor on an imported combined FBX Mesh. Also Reproduced in Main Promotable-CL-2484152 (Perforce) NOTE: User is o ...
Event dispatchers show replication settings but don't support replication
UE - Gameplay - Blueprint Editor - Mar 18, 2022We should ideally hide the setting, but at the very least we can make it a warning if you check it indicating it's not gonna do anything. [Link Removed] ...
Regression: "Object Position" node in Light Function materials did not compile up to UE 5.0. Starting with 5.1, it compiles but outputs garbage values
UE - Rendering Architecture - Materials - Aug 26, 2024Up to UE 5.0, when the "Object Position" node is used in the Material Editor as part of a material with Light Function domain, attempting to compile the material results in the following error: "[SM ...
Number of Frames in Animation Change on Import When the Frame Rate is Set to 30 or 60 in Maya
Tools - Feb 12, 2018-When imported into 4.17.2 the 30fps animation had 42 frames. In any engine version after the animation has 17 frames -The 60 FPS animation only has 7 frames in all engine version ...
COM Media Type error in video writer on 8K videos
TM - Rendering - Dec 12, 2024360 videos set to 8K resolution will fail to render in Twinmotion 2024.1.2 and newer Render attempts will end abruptly shortly after being initiated with the following error message ion the logs L ...