I have almost the same timeline up to Pre arrival letter too!I received it last Friday and my GC key says my background check and eligibility are both in progress, however, in my tracker,both are not started.I have almost the same timeline up to Pre arrival letter however my PR tracker is saying background check not started. Did you have this and then just suddenly got portal invitation etc?
I phoned and agent said BG not started from what she could see too. They lost my paper application from July 2021 and this is my second application so I just really want this to be over.
any insight you have to the background check would be really appreciated. Congratulations on getting PR
What does it show in your Gc key? Maybe it's updated there already.