Same here...
I originally submitted my application Oct.10. Two weeks ago (Dec.5), I got an email AOR. in the following week, I got my OWP returned due to insufficient funds. I have re-submitted the OWP application to Vegreville, AB - received Dec. 19.
I called CIC, they told me CIC will grant me the OWP only when my sponsorship immigration is Approved in Principal. I searched on CIC website, AIP means "IRCC stating you meet the permanent residence eligibility requirements, but you still have to pass the medical security and background checks". If this is true (which I hope is not), I guess they will approve my OWP when they are ready to approve my sponsorship immigration, which will take approximately 12 months...
It would be helpful if we could update our status here. So every one of us can have an idea of the progress for cases like this.