Yep, same here as well in Austria (if that makes any difference regarding Amazon server API - maybe not all are updated the same time, was my thinking)
Although comparing with other posters, for me it doesn't show up whatsoever. So not only missing delivery status, I'm missing the entry completely.
But I just set up the app yesterday and maybe I did something wrong - Amazon login+2FA seemed to work fine though
Edit: ok, I manually added the order and that worked. And I saw, that I only considered synchronization for Amazon.com and not the .de domain.
So maybe it was my fault
Edit2: manually added order works fine - although I got a second 2FA request after a refresh. But the other order isn't getting added. That one is sent by local post and not by Amazon's own delivery service. So maybe there is a difference?
Or automatic synchronization just doesn't work at the moment :-\
Edit 3: after manually adding the first order, suddenly the second one also shows up there.
No clue any more how consistent this is.
Will need to wait for upcoming orders, to have more data at hand.
At the moment both packages seem to be tracked correctly