Closing out my inputs to this string... As previously reported, I e-filed on the 4/15 with a debit authorization on the same day. Payment finally posted to my account on 4/25 and the online return status on the MO tracker website finally updated to from delinquent w/ penalties, interest and fines to "Your return has been accepted as filed" on 5/6. So, the system worked... slowly... at the speed of government... but it worked.
