I know exactly what you mean; it's a super common issue these days with global shipping! It happens to me way too often, especially if something is coming from overseas. Sometimes the tracking just doesn't update, even if the parcel is moving, which is incredibly annoying for the recipient. I usually find that the tracking from the original postal service often stops once it leaves the country of origin, and then it picks up again with the destination country's postal service. If you're looking for detailed parcel tracking updates, sometimes different tracking websites offer more comprehensive information. I've heard some people have luck with
NedosTavka for getting more insight into these situations, as it sometimes aggregates data from multiple carriers. It's often just a matter of patience, but it's hard when you need the items.