Unreal Engine Issues

Crash importing FBX

User reporting as a 4.7 Bug, but no crash report for this bug available for 4.7. Same bug found reported for 4.6.1: Crash Report: [Link Removed] [Code] <unknown module>! KERNELBASE!RaiseExceptio ...

Curves do not scale with modified animation length at reimporting animation with new interchange importer

Generate Lightmap UVs Fails Very Frequently on FBX Imported Meshes

Generate Lightmap UVs fails very frequently on FBX imported meshes.  Found in 4.22 CL# 7053642, 4.23 CL# 8386587, 4.24 CL# 8971176 ...

Material is not replaced by default material after .udatasmith file reimport.

Texture Array "reimport" button does not update textures

Incorrect Material Element Indexes When Importing Multiple Meshes In The Same FBX

Incorrect material element indexes when importing multiple meshes in the same FBX. If you re-import the mesh that has the incorrect material element index it will correct itself. Seems similar to [ ...

Support for import/reimport of mesh LODs is unavailable in Blueprint and python

The missing API prevent clients to do good scripted import pipeline tools. there is two UDN thread that can be solve by this JIRA https://udn.unrealengine.com/questions/566538/how-to-add-a-custom- ...

[Interchange] FBX - Front Facing X-Axis and Flipped Bone Orientation During Animation

Actors attached to a skeleton imported through a FBX file with the Front Facing X-Axis option enabled are flipped when the skeleton is animated. ...

Importing fbx breaks Content Browser and mouse controls for RU localization

When an FBX asset is imported into the editor on a Linux machine with the ru_RU localization the editor behaves strangely after restarting the project. Content Browser fails to show content and cer ...

Reimporting skeletal mesh clears material references from material slots

This occurs in //UE4/Release-4.15, //UE4/Dev-Editor, and //UE4/Main Does not occur in 4.14.3 ...