I am in the exact same situation as you. We sign the CORP paper and got the sin issued smoothly. But the officer told us to get a PR card until we fully move to Canada in the future.
Got gold email today.
Share my timelines here to add data points:
AOR: April 27th,
Medical: June 6th
Bil: June 20th
Experienced two ghost update:
1st ghost update: June 27th around (not remembered clearly)
2nd ghost update: July 18th