{"action":"created","issue":{"url":"https://api.github.com/repos/mne-tools/mne-python/issues/1823","labels_url":"https://api.github.com/repos/mne-tools/mne-python/issues/1823/labels{/name}","comments_url":"https://api.github.com/repos/mne-tools/mne-python/issues/1823/comments","events_url":"https://api.github.com/repos/mne-tools/mne-python/issues/1823/events","html_url":"https://github.com/mne-tools/mne-python/issues/1823","id":58511949,"number":1823,"title":"IO of SSS info is broken after filtering with mne_process_raw","user":{"login":"agramfort","id":161052,"avatar_url":"https://avatars.githubusercontent.com/u/161052?v=3","gravatar_id":"","url":"https://api.github.com/users/agramfort","html_url":"https://github.com/agramfort","followers_url":"https://api.github.com/users/agramfort/followers","following_url":"https://api.github.com/users/agramfort/following{/other_user}","gists_url":"https://api.github.com/users/agramfort/gists{/gist_id}","starred_url":"https://api.github.com/users/agramfort/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/agramfort/subscriptions","organizations_url":"https://api.github.com/users/agramfort/orgs","repos_url":"https://api.github.com/users/agramfort/repos","events_url":"https://api.github.com/users/agramfort/events{/privacy}","received_events_url":"https://api.github.com/users/agramfort/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":8,"created_at":"2015-02-22T18:12:41Z","updated_at":"2015-03-03T19:13:43Z","closed_at":null,"body":"To reproduce, take the somato data, filter with:\r\n\r\nmne_process_raw --raw sef_raw_sss.fif --highpass 1 --lowpass 40 --save test_raw.fif --projoff --decim 2 --filtersize 16384\r\n\r\nthen try this:\r\n\r\n```\r\nimport mne\r\n\r\ninfo = mne.io.read_info('test_raw.fif')\r\nmne.io.write_info('tmp_info.fif', info)\r\ninfo = mne.io.read_info('tmp_info.fif')\r\n```\r\n\r\nit should break. In otherwords the MNE-C code breaks the Python IO of SSS metadata :( :(\r\n\r\n@Eric89GXL bad weather in seattle?"},"comment":{"url":"https://api.github.com/repos/mne-tools/mne-python/issues/comments/77013153","html_url":"https://github.com/mne-tools/mne-python/issues/1823#issuecomment-77013153","issue_url":"https://api.github.com/repos/mne-tools/mne-python/issues/1823","id":77013153,"user":{"login":"dengemann","id":1908618,"avatar_url":"https://avatars.githubusercontent.com/u/1908618?v=3","gravatar_id":"","url":"https://api.github.com/users/dengemann","html_url":"https://github.com/dengemann","followers_url":"https://api.github.com/users/dengemann/followers","following_url":"https://api.github.com/users/dengemann/following{/other_user}","gists_url":"https://api.github.com/users/dengemann/gists{/gist_id}","starred_url":"https://api.github.com/users/dengemann/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dengemann/subscriptions","organizations_url":"https://api.github.com/users/dengemann/orgs","repos_url":"https://api.github.com/users/dengemann/repos","events_url":"https://api.github.com/users/dengemann/events{/privacy}","received_events_url":"https://api.github.com/users/dengemann/received_events","type":"User","site_admin":false},"created_at":"2015-03-03T19:13:42Z","updated_at":"2015-03-03T19:13:42Z","body":"@mluessi with @agramfort we processed data and realized that the fiff files containing SSS info are not readable anymore after the raw files have been processed using mne_process_raw + decimation. To be precise, the problem occured when evoked or epochs objects were created based on the processed raw files and saved to disk using python.\r\n"}}