Singular Affine Matrix Error

[ryan-fritz]

Hello,

I'm very excited to use this fastsam extension for 3dslicer. I recently have run into issues for T1w from OASIS1 dataset when i try to input include and exclude points on the volume I get this singular affine matrix error and no segmentation registers. Wondering if others have run into this in the past. Thanks!

Error.
Traceback (most recent call last):
File "<hidden_path>/fastsam.py", line 293, in onMarkupIncludePointPositionDefined
self.addPoint(caller, self.logic.include_coords)
File "<hidden_path>/fastsam.py", line 353, in addPoint
coords = np.round(np.linalg.inv(self.logic.affine) @ np.array(coords).T)
File "<hidden_path>/numpy/linalg/linalg.py", line 561, in inv
ainv = _umath_linalg.inv(a, signature=signature, extobj=extobj)
File "<hidden_path>/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular
raise LinAlgError("Singular matrix")
numpy.linalg.LinAlgError: Singular matrix