I have been trying to manually correct a wm volume to further fix the wm and pial surfaces, but when I ran recon-all -subjid SUBJxxx -autorecon2-wm -autorecon3 nothing happened to the surfaces. I found an unknown-args.txt file under scripts, and it seems the autorecon2-wm flag is not recognized. 

How can I create new surfaces and overcome this issue?

Thank you very much in advance,