What is your vent control set on on your climate control unit? Make sure it's not on feet as opposed to face vents. If not...
The duct is not mounted between the center console output and the vent. Crawl under the steering wheel and see if you can see if the duct has become disconnected on either end. You can easily get to both ends while your under the dash.
If they look ok, start your car and get the AC going and feel around under the dash for cold air,
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