Does "was acknowledge" mean the return was shown as being transmitted to the federal or state?  And what time period are we talking?

You get an acknowledgement of acceptance...your post doesn't quite make sense.

Is the return still sitting in the Pending Tab of the EFCenter? 

If so, you have not received an acknowledgement.

I am having a similar issue.  I tried e-filing a 2019 return this evening, and it was successfully converted but not transmitted. I have tried multiple times and get the same result.

Is there a system wide issue with ProSeries today?