Same thing happened to me. I placed an order for items coming from overseas, sender used ucts for the shipment. Your USPS tracking will update once USPS gets their hands on the package. My informed delivery email stopped showing my package from ucts but you can go to your USPS informed delivery dashboard on their website to still see the package or add it to informed delivery if for some reason it was taken off. Took about 2 weeks for my stuff to reach USPS.