“USPS in possession of item” since Wednesday with no updates, should I be worried?

The main reason I’m worried is that a week ago I had to refund someone on eBay who never received their package after 2 weeks of waiting(that package is still floating around somewhere) and that issue also started with the package saying “usps in possession of item” for like 10 days with no updates. This is a priority mail package

The main reason I’m worried is that a week ago I had to refund someone on eBay who never received their package after 2 weeks of waiting(that package is still floating around somewhere) and that issue also started with the package saying “usps in possession of item” for like 10 days with no updates. This is a priority mail package