Yes, my notes show the same for 3/4s posted on 3/9.
Account Activity page: I find my 3/9 posted note on the My Notes page and it says Current, but when I click on Current and look at the note it says the same thing as yours do, completed--in grace period (which is clearly wrong!). Looking up in reverse on the My Notes page, the 3/4 notes that say In Grace Period (3) actually are. So, the rest of my 3/4 are current on the My Notes page but on the individual Loan Performance page they all falsely report In Grace Period.
All the non-real-grace 3/4s posted to Activity on 3/8 correctly report Completed--On Time.
Hope 3/9 catches up!