If you attend us visa interview and your passport was returned back?
One of two possabilities. There was a mistake or the data base in the tracking app has not been updated. Sometimes the data bases are only updated once a day, in night time if that is what they are doing. That is older design from the era when computers were not as fast as now or may be a security measure to preserve data intergerty. Wait a day or two and check again. If still showing at the Embassy, contact them and let them correct the mistake.