i resubmitted it on 5th july , and i didnt manually sign it . i signed it electronically . and clicked on validate and it got validated . i havent received any message regarding the schedule A again !I still have to resubmit form, just about to print out the doc, sign and scan it... but then I started doubting again whether it's the right procedure. So I looked into it again and came across this info on the IRCC website. Just don't know for sure whether the "original signature" part in the instructions we received, means that it actually has to be a wet signature (and therefor print, sign and scan it) Confusing!