After applying the process_ssp_apply process, if you visualize the fif file and select Artifacts->Select active projectors, none of the projectors (autossp) have been applied. Specifically:
Also, process_ssp_apply generates a new link to raw file with extension '_clean', which seems unnecessary.
Step1: Review raw file.
Step 2: Run:
% Process: Apply SSP & CTF compensation
sFiles = bst_process('CallProcess', 'process_ssp_apply', sFiles, );
Step 3: Artifacts->Select active projectors, this is still set to none.