On January 2nd, the visa status of No.6 was changed to issued. Why did the visa pass the passport status but it was "being transported to the embassy"?

according to the information you provided, the visa status has changed to "issued", which means that the visa has been approved and you can start preparing to go to the United States. However, the passport status still shows "being transported to the embassy", which may have several possible reasons:

1. Passport and visa are sent separately. Sometimes, the processing of visa applications and the delivery of passports may be carried out at different times. Therefore, even if the visa has been approved, the passport may still be in transit.

2. The passport delivery has been delayed. Due to various reasons, such as weather problems or transportation problems, the delivery of passports may be delayed. In this case, you need to wait patiently until your passport arrives at the American embassy of your choice.

3. There is a delay in updating information. Sometimes, the information update on the official website may not be real-time. Therefore, even if the passport has been delivered to the embassy, the information on the website may still show that it is being delivered.

if you are worried about the status of your passport, you are advised to contact the American embassy or consulate directly to get the latest information and guidance.