This group has been helpful so I want to lay out my experience. Mine was a dropbox at Vancouver consulate and we have been living in Vancouver.
May 03/2024: Submitted docs through Canada Post
May 10/2024: Approved but my partners application id was not returning any info
May 13/2024: Application moved back to Received stage.
May 15/2024: Application approved for the second time
May 16/2024 : Visa Issued.
Hopefully this helps to the folks who are worried about application moving back to Received stage after approval.