Animation import with "Force Front X Axis" is broken until a re-import

UE - Editor - Content Pipeline - Import and Export - Apr 24, 2019

Crash on opening a pose asset after reloading a skeletalMesh with bone name changes

OLD - Anim - Nov 6, 2017

Opening an old pose asset can crash the editor if the skeleton it uses gets updated. ...

Engine does not handle in-between blendshapes

Tools - Jun 2, 2017

Engine does not handle in-between blendshapes ...

UV Layout Changes on export from Engine to Maya and Max

UE - Editor - Content Pipeline - Import and Export - Jan 19, 2015

The UV layout of a Mesh is altered slightly when exported from the engine. It becomes more noticeable on objects as their UV Islands shrink in size. Given a default full 0-1 unwrap it looks like t ...

OBJ file imports with wrong scale and orientation.

TM - Interoperability - Jun 14, 2024

I've also attached an FBX of the same mesh for reference. [Link Removed] [Image Removed] ...

Incorrect normal calculation when rotating a ProceduralMeshComponent

UE - Graphics Features - Jul 19, 2021

Issue happens on meshes loaded from FBX and used to create a ProceduralMeshComponent with CreateMeshSection_LinearColor function ...

Datasmith re-import crash - UE4Editor-UnrealEd!UMaterialInstanceConstantFactoryNew::FactoryCreateNew

UE - Editor - Content Pipeline - Datasmith - Exporters - Feb 13, 2019

From user:I'm getting repeatable crashes on re-imports after I've re-worked the models a bit in Max. The workaround now is to just delete everything from Unreal and do a fresh import, but as my o ...

Specular errors rendering in Highlight

UE - Graphics Features - Sep 21, 2015

On certain assets, specular element is showing lines on an asset. [Image Removed] I have attached a Maya and FBX file of an asset which demonstrates this issue. ...

Importing Mesh with "Import Animations" enabled crashes editor.

OLD - Anim - Nov 13, 2015

After importing a mesh with "Import Animations" enabled the editor crash's. Importing only the mesh does not crash the engine. Importing animation separately and assigning to Skeletal mesh on import ...