NoneType object has no attribute "NbNodes" in tessellate function call

Hello - I am trying to use the "from_files" option in diff3d to get the difference between 2 3d models (.stp files), Has anyone faced the below issue, please let me know if you have any suggestion. 

<img width="661" alt="Image" src="https://github.com/user-attachments/assets/7229310d-509b-46f1-9a09-a798c42f2fd2" />

python version => 3.10.16