Not including visa scan is not a major issue , but your location and address change should be reported through web form .1.I have a similar query , I forgot to scan and upload canada visa and us visa page and stampings, I just submitted my passport copy front page, should I scan and upload all the pages?
I applied for PGWP in june while I was in canada and returned to India due to family emergency and now my study permit expired (90 days after receiving transcript) on actual permit it's November 30 and cannot travel back to Canada on study permit ,do I have to inform ircc via webform the change in address and my current location or let the processing go with the canda address?