Hi there, I noticed that the UCI number for my family class PR application changes when IRCC emailed me for their medical exam request. The UCI number shown in the request is different from the UCI number that IRCC sent me in their first email notification regarding my PR application (i.g. acknowledge receipt). The application number is still the same. Does any one know why the UCI number changes? Does it have any impact on my application? Or can I just leave it the way it is?