As we understand it, many of the updates on the entire production tracking system are still performed manually. There are delays at times, mistakes at times, or even inconsistent data. Don't expect precision.
As far as the boat, it should leave the dock quickly. Shanghai is an extremely busy port with over a hundred ships serviced every day. Actually those surrounding waters around Japan, Korea, and China are the busiest in the world. They won't let a ship sit at a dock, but it may anchor somewhere. I don't think we've seen a ship go directly from Shanghai to Portland yet. So expect a delay as it makes a couple of other stops, or worse, has to anchor waiting for those stops to open up.