Yup

I have one filed early yesterday just sitting in "Sent to IRS", have a few others sent today already accepted.

If It's still in limbo come Monday, I may start to get concerned, but not concerned enough to sit on hold with Proseries to get someone to tell me "there's nothing we can do"

They're punishing you for being up working at 2am this early in the season!  😉

Be grateful its your own return and not a client, give it a few days.   

If you highlight the return in the EFCenter, then use the Update Acks option, that seems to be the best way to shake them loose when they get stuck