error in find_bad_channels_maxwell

I have an error from find_bad_channels_maxwell that I am not able to fix. The file has a BAD_ACQ_SKIP segment at the beginning, but using skip_by_annotation did not help. Thanks for any hints on how to solve this!

File “/home/sh254795/anaconda3/lib/python3.7/site-packages/mne/preprocessing/maxwell.py”, line 1950, in find_bad_channels_maxwell ss[-1] = end

IndexError: index -1 is out of bounds for axis 0 with size 0

You can find the data here.

Here is a minimal example:

import mne

filename = 'example_badchan_error-raw.fif'

raw = mne.io.read_raw_fif(filename,
                                  allow_maxshield=True,
                                  preload=True, verbose='error')

auto_noisy_chs, auto_flat_chs = mne.preprocessing.find_bad_channels_maxwell(raw,
             limit = 10., verbose=True, skip_by_annotation = 'BAD_ACQ_SKIP')

[larsoner]

… actually it looks like the file is shared above already, thanks @SophieHerbst !

[gabrielbmotta]

@larsoner thanks for the quick response. We don’t have that same function in our code, we’re still trying to find out where and why a segfault happens when the file was loaded.