FBX SkeletalMesh Importer: unskinned group are added has bone when importing SK

UE - Editor - Content Pipeline - Import and Export - Jan 10, 2020

In the fbx Fighter_Jenny is a null object that is not skin to the mesh. null object that are not skin should be remove from the skeleton, at least at the root. Often people want to add a group to al ...

Fbx importer crash when reordering material array

Tools - Dec 13, 2016

Its possible to have a fbx file which as unused material in the fbx node. The reorder material function is not handling this case. ...

Reimporting creates new Material Slots instead of overwriting.

UE - Editor - Content Pipeline - Import and Export - Jun 25, 2014

CHANGELIST: 2114974 BRANCH: UE4 - Main DESCRIPTION:                              Using the Reimport LOD1 drop down in the Static Mesh Editor will create new material slots each time instead of ove ...

Unable to reimport Alembic static meshes

UE - Gameplay - Aug 5, 2016

User is not able to reimport an Alembic asset (using the right-click > reimport option). The workaround is to import and then overwrite the asset instead. ...

The RGB values of materials on FBX files are not correctly imported.

TM - Interoperability - Mar 20, 2024

When importing an FBX file with simple RGB color they are not importing with the same color as its original value with either interchange or mootools.  When opening the attached FBX file in 3dsmax ...

Auto-Reimport Dialog cannot be dismissed

Tools - Jul 14, 2015

If you have set your project to Auto Import Assets from a certain folder and are connected to Source Control, you will get a pop up warning message which states: "We noticed that your auto-reimport ...

Crash reimporting Skeletal Mesh that has an extremely high amount of LODs

Tools - Nov 14, 2017

I have attached the project I used to repro this as well. All you should need to do is reimport twice on the untitled skeletal mesh and it should crash ...

FBX export from UE4 with multiple materials the UV is corrupted

Tools - Apr 18, 2016

When exporting a Static Mesh from within UE4 that has multiple materials, some of the material IDs will be condensed into a single ID which will mess up how the material assignment for that part of ...

FBX naming conflicts causing collision to not import correctly.

UE - Editor - Content Pipeline - Import and Export - Feb 17, 2025

For our static mesh pipeline we have group nodes in Maya that use the name of the asset. Under that we have a mesh that also has the name of the asset. We may also have collision as well so a typica ...

Compressed anim sequence data isn't updated immediately when a mesh is reimported

UE - Anim - Runtime - Mar 21, 2022

It seems that when reimporting a mesh that has added bones we aren't updating the compressed data within the anim sequences to account for the change in indicies of the virtual bones. If a user cal ...