This is way to common. The USPS is not scanning all envelopes. They put a ton of mail into a truck going to the last zip code which is all IRS mail. Most of it does not have to be scanned but some of it does. They mix it together going out of the last real USPS office and they miss some of the scannable ones at the IRS zip code so the last scan recorded is at the office before the IRS. It is a god awful mess. If you owe money it is easy to tell, your check will be cashed and the money out of your account within 6 weeks from mailing. Refunds you will not have a clue if they got it or not as there will never be any further tracking. I would wait at least 6 weeks before filing again. Then check where is my refund on IRS.gov , most likely it is not lost just not scanned and who knows when they will get to the refunds. In 2020 the IRS had to send out 2nd checks for interest payments on the late 2019 refunds because they were so late. I expect that will happen again this year. Maybe it will get better after Biden removes that Trump appointee from the head of the USPS.
