Read somewhere that applications go through 2 or 3 layers of review ~ junior officer/s and then a senior officer who makes the final decision. And normally, they move files from one office to another, when there are backlogs, the office is overwhelmed with a lot of applications.
The AUH office has prolly done the initial review and then the senior officer who will hand out the final decision is in Warsaw. So, I think your application won't have to go through the process all over again ~ you won't have to wait for long, your PPR is on its way to you. Stay positive