I have 9 wins and 15 losses in the current competitive season, but my rank never displayed after 7 wins and still doesn’t. I’ve used the battle.net “scan and repair” feature, to no avail.
@Edit
My rank eventually showed up after about 11 or 12 wins.
@Edit 2
I’m now at 15 wins and 19 losses, and my rank is not visible again.