Unreal Engine Issues

High Precision Tangent Basis & Use Full Precision UVs on Skeletal Meshes reset after reimport

Reimporting a skeletal mesh causes "use high precision tangent basis" & "use full precision UVs" to reset and no longer being applied to the mesh. Reported and tested in version 4.25.3(CL 13942748) ...

Level export to FBX with actor X axis negative scale has issue in 3ds MAX

The fbx exporter set the fbx axis system like 3ds max, so the max importer is not converting the incomming transform. see: ...

Unreal Editor crash on Datasmith import with VrayBlend Materials

It seems like VrayBlend materials are crashing the Engine when importing them with Datasmith. This is a regression from 4.24.3 (CL-11590370) where the file imported successfully. This was reported ...

UE 4.25.1 Offline Installer Display Error

[Image Removed] [Image Removed] ...

unnecessary warning message regarding edge case rotations from deltagen fbx import

Inventor Assembly imports incomplete or missing geometry

It seems that UE4 has a problem with importing Inventor Assemblies and Subassemblies. Files are either the wrong orientation or missing their geometry completely. This was reported and tested in 4 ...

No shadow cast after Static Mesh Editor material assignment

This is a Rhino file. Shadows are not cast on the Static Mesh after materials are assigned in the Static Mesh Editor. This was reported and tested in 4.24.3 (CL-11590370). This was reproduced in 4. ...

Exporting a UE4 Animation into Maya results in wrong skin weight

UE4 Mannequin animations are not exporting/importing correctly into Maya. The right hand is bulkier and the left shoulder is dislocated. This was reported and tested in 4.23.1 (CL-9631420). this w ...

Crash while trying to import a C4D file with Animation via Datasmith

The file was originally created by Mixamo and saved as FBX. It was resaved it in C4D with the Save for Cineware Option. Importing it into the Editor causes it to crash. This was tested and reported ...

Inverted normals with Datasmith .STP import

When importing this .stp file through Datasmith, the normals are inverted upon import. Attached are screenshots of the normals in AutoDesk Alias and McNeel Rhino. This was reported and tested in 4 ...