Dear FSL community, I have been using FIRST for so long, and I never had any issues but, today, all the subjects I am processing (run_first_all) are failing due to this error: terminate called after throwing an instance of 'NEWMAT::SingularException' /usr/pubsw/packages/fsl/current/bin/run_first: line 165: 25414 Aborted (core dumped) ${FSLDIR}/bin/first -i $image -l $trmat -m $model -k $outname -n $modes $verbose $comExtras Due to this, it does not generate ANY of the segmentations (all the error logs, for all the structures, present the same error message). Could you please help me identify the issue? Thank you very much for your valuable help. Best, -- Angel Torrado-Carvajal Postdoctoral Research Fellow Neuroinflammation and Pain Imaging Laboratory MGH/HST Athinoula A. Martinos Center for Biomedical Imaging Building 149, Room 1101, 13th Street, Charlestown, MA 02129 USA [log in to unmask] | www.nmr.mgh.harvard.edu<http://www.nmr.mgh.harvard.edu> | @MGHMartinos The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail. ######################################################################## To unsubscribe from the FSL list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=FSL&A=1