I'm not on the tracker, today is the 9th week since the package was received and I don't think the application is complicated because of the following reasons:
1) I am only sponsoring my mother (single mom, active UCI, lots of travel to USA and Canada all detailed in Schedule A, etc)
2) I am in Quebec which means the financial evaluation is done by Quebec and I recently sponsored my wife, so my eligibility was evaluated in the last few months
3) We didn't miss a signature, a form or anything else
It's all random ...