Segmentation Fault when creating alpha shape from point cloud

[shteren1]

Checklist

• [X] I have searched for similar issues.
• [X] For Python issues, I have tested with the latest development wheel.
• [X] I have checked the release documentation and the latest documentation (for main branch).

Describe the issue

When trying to create alpha share from this specific point cloud (ply attached) segfault_example.ply.tar.gz the process dies on segfault

Steps to reproduce the bug

import open3d as o3d
pcd = o3d.io.read_point_cloud('segfault_example.ply')
alpha_shape = o3d.geometry.TriangleMesh.create_from_point_cloud_alpha_shape(pcd, 0.6)

Error message

No response

Expected behavior

the code will produce a valid alpha shape

Open3D, Python and System information

- Operating system: Ubuntu 18.04
- Python version: Python 3.10.14
- Open3D version: 0.18.0
- System architecture: x86
- Is this a remote workstation?: no
- How did you install Open3D?: conda-forge build py310h01ad8e9_4

Additional information

No response

[James-JLC]

pls uninstall numpy and reinstall numpy < 2.0 such as numpy==1.24.3

[Clarivy]

It would be great if you can add numpy<2.0 into dependency

[shteren1]

@James-JLC i am using number 1.26.4 in the python environment that had the segfualt