I HAVE A PACKAGE THAT I SHIPPED ON 5/4 FROM HARRISBURG PA GOING TO MOBILE AL. ON 5/6 THE TRACKING SAID IT ARRIVED AT 3:55AM AT THE LANCASTER DISTRIBUTION CENTER AND IS ON ITS WAY TO THE DESTINATION. THERE HAS BEEN NO MOVEMENT SINCE 5/6/21. WHY?

I am in the same exact boat and it was supposed to be delivered on 5/8/21 and there has been no movement since. I have opened 2 cases and even a missing mail request which have all been closed and marked as resolved but yet tracking still shows my parcel at the same location USPS Regional Facility LANCASTER PA DISTRIBUTION CENTER. I just called the number listed and have been put on the list to receive a call back in 1-2 hours. This package is an order I shipped out worth $100 of product including a memorial piece for someone's son who passed. She is in my inbox almost every day waiting for it to arrive and USPS is not helpful in any way as far as locating it. I am not even sure of what I need to do next at this point. Hopefully when they call me back, someone can actually help me.

I had similar situation where 2 priority mail packages got "stuck" in Utah and never got update from their distribution center to PA. I submitted missing mail requests and they finally showed up 6 weeks later but at least they weren't lost or destroyed. Since the last update was fairly recent (by USPS standards) and you don't see a lot of movent on Sunday, I would give it 2 more days before worrying too much.