On May 25, 2022, a return from tax year 2020 was transmitted and I have not received an acknowledgment yet.  I even looked in the return for a submission id.  I have tried to update the status of the return for both the federal and state and the status has not changed.  It is unusual not to get any acknowledgment.  

Please note that I also transmitted the return for tax year 2021 on the same day and have the Form 9325.

I have also transmitted other returns from tax year 2020 with no problem

Please advise