If you have provided your PCCs pretty recently, and if they haven't lost it, there is no reason why they should ask it again.
Firstly, you may want to call CIC call center and check out what's holding back your application. I can't say if they are still working on your security check.
At the same time, if you haven't done yet, you may want to make the online ATIP request (aka GCMS) which will give you a clear idea if the progress on your security, criminality and background is all done. Below is the link:
https://atip-aiprp.apps.gc.ca/atip/
Rest assured, perhaps its just a matter of time before your PPR comes in. Just hang in there a bit more.
All the best.