I was in the same situation. I applied in July 2017. No updates since AOR. I received MR at the beginning of January 2019. After medical passed, the background check passed in the next 3 weeks. Apparently IRCC would speed up the processing if your application is close to the deadline.My application passed 1 year already, and I have not got the MR. nothing update since AOR. I believe he is too.