Hello there,
Just from our experience, Our package/application was sent out in June and received 2 days later, but the online tracker wasn't updated until 1 month later when my Husband (sponsor) was approved.
You may not see any changes for 30 days... Just have peace of mind that your application was signed for

It seems that each step from this point takes close to 30 days....At least in our case it does
Application sent in June,Sponsor was approved in July, our application was sent to Buffalo...20 days later the application gets sent to New York City (August), 36 days later I'm still waiting to hear something, hoping the next time I check my mailbox it will contain the letter requesting my passport.
Good Luck...Hang in there as best as you can
