gemc_to_h5ad UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb6

[Melany-OY]

Hi, I came across a problem when I convert gemc to h5ad with mask file

My code is
./Python-3.8.18/bin/python ./GEM3D_toolkit-dev/GEM_toolkit.py gemc_to_h5ad -i A05640B8_cell_mask_correct_filter.gem -o A05640B8_cell_mask_correct_filter.image.h5ad -m A05640B8_cell_mask_correct_filter.tif

The output error looks like this
Traceback (most recent call last):
File "./GEM3D_toolkit-dev/GEM_toolkit.py", line 141, in
gemc_to_h5ad_main(sys.argv[2:])
File "./GEM3D_toolkit-dev/gemtk/gemc_to_h5ad.py", line 64, in gemc_to_h5ad_main
masks = np.loadtxt(cellmask,dtype=int,delimiter=' ')
File "./Python-3.8.18/lib/python3.8/site-packages/numpy/lib/npyio.py", line 1338, in loadtxt
arr = _read(fname, dtype=dtype, comment=comment, delimiter=delimiter,
File "./Python-3.8.18/lib/python3.8/site-packages/numpy/lib/npyio.py", line 999, in _read
arr = _load_from_filelike(
File "./Python-3.8.18/lib/python3.8/codecs.py", line 322, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb6 in position 78: invalid start byte