Unreal Engine Issues

Crash Importing Skeletal Mesh LODs with a lot of morph targets

Crash Importing Skeletal Mesh LODs with a lot of morph targets Error message: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 785] Array index out of bounds: 2 from an ar ...

Crash when trying to export unsupported Paragon Skeletal Mesh asset in 4.23

When the user tries to export the Skeletal Mesh of TwinBlast (a paragon character that can be purchased off the marketplace) in 4.23. As of the time of logging this bug it is not supported in 4.23, ...

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

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

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

Crash when importing skeletal mesh with no material

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

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 ...

Imported Static Mesh Socket rotation is incorrect

Imported Static Mesh Sockets are importing at the wrong orientation Result: [Image Removed] Expected: [Image Removed] ...

Crash when Changing Source File and Re-Importing Mesh used in Mesh Particle System

A licensee has reported a crash when re-importing a mesh being used within a Mesh Particle system. Regression? Yes, this crash does not occur in the 4.11.2 binary release. Link to Crash Logs: [Lin ...

Auto Align Floor to Mesh causes floor to align well below the mesh

NOTE: This is likely a known issue, but I could not find an existing bug for tracking Auto Align Floor to Mesh causes floor to align well below the mesh. Causes the mesh to float I've tried with ...

Skeletalmesh regenerate LODs loose the section settings