I missed the same requirement in my PR Card Renewal application i.e. write my name at the back of the photograph. CIC returned my full application in mail. I wrote my name on the photograph sent back the full application again along with the CIC letter that stated that the name was missing. Hope this helps
I didn’t write my name (but they were stamped) and I got my aor yesterday. I applied as a single applicant - only one application in the envelope. I think single applicants should be ok if you forgot to write your name.
