Crash during Datasmith file import when not using Keep Hierarchy

Reported to support.

The user has reported that one of their .udatasmith files will consistently crash in TM 2025.1.1 during import.

This was consistently reproducible when importing using Collapse by material or Collapse all modes. Keep Hierarchy mode did not crash.

Crash does not occur in prior versions.

Download client files from [Link Removed]

1. Launch TM 2025.1.1
2. Import > Geometry and select the .udatasmith file
3. Set Collapse mode to either Collapse All or Collapse by material

Set Collapse mode to Keep Hierarchy