Same here. The delay is from Purolator in my case. You can track at BLS website if they already received and sent it via courier (Purolator), you can find tracking number there as well and track it on purolator website.
Time line : Mailed in wife and kid pp and received on Aug 2nd by passport office
PP status changed to mailed and printed on Aug 29th for wife
No update for kid
Background updated: May 15
Test invite received via email on May 16
No update yet on portal regarding test
Nothing updated for child on same group, is it normal?
Great! my application date: Oct 10 (Toronto)
Status on BLS: Processing at Consulate General
on OCI: no records found
Don't know how much time it will take for acknowledgement