Problem with "find_bad_channels_maxwell"

[Yike]

@sby

auto_noisy_chs, auto_flat_chs, auto_scores = mne.preprocessing.find_bad_channels_maxwell(
    raw, return_scores=True, verbose=True)

I use maxwell to detect bad channel for MEG data, but got this error:Number of requested bases (95) exceeds number of good sensors (63). How to solve this problem?

[wmvanvliet (Marijn van Vliet)]

What MEG system are you using? Having only 63 good channels seems like an odd number to me.