In my case, I have seen that DHL transferred the package to a local provider (bpost). On the website of DHL, I can see every movement, also the transfer from DHL to bpost. The tracker stays the same.
After the parcel has been transferred to the second provider, the app shows 'Error loading data!'.
When I change the provider to the second provider, it works fine.
How come that the app isn't smart enough to keep the same tracker?
At least, I should get a notification that there was a sync problem.
It would be nice if I can specify another sound for that notification.