I fixed the bug related with the export of the bad channels:
https://github.com/brainstorm-tools/brainstorm3/commit/f1e96b8148e26302ad2651d67de7ab4ca991c4fd
Please update Brainstorm to get this fix.
Note that you don't have to explicitly pass the channel file in input, it can be obtained from the database.
@Alexandre
How can I get rid of all these DeprecationWarning?
I tried setting the _unlocked attribute to True at the beginning, but it doesn't help, as the attributes don't exist before...
The documentation recommends creating the Info structures with mne.create_info (https://mne.tools/dev/generated/mne.Info.html), but then how to I add the information I need to stick in there?
https://github.com/brainstorm-tools/brainstorm3/blob/master/toolbox/io/out_mne_channel.m#L111