The IRS is very slow this year to process mailed returns because they did not open mail at all for about 14 weeks due to the COVID-19 shutdown. They are way backlogged so it might take a while to process. The fact that they cashed your attached check proves that they received and opened it. The IRS mail room separates (and deposits) checks and then forwards the return to data entry clerks to enter into the processing system.
I would not worry about if for a month or two.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
