IRS Shows "Verification of Non-Filing" Status 3 Weeks After Accepted February Return - Normal Processing?

I filed my return on February 8th and got acceptance confirmation same day. But when I check my transcript its showing "Verification of Non-Filing Letter." The transcript page shows this letter "states that the IRS does not have a record of a processed tax return as of the letter's date." It specifically mentions two possibilities: "either no tax return was filed for this year or your tax return is still being processed." When I look at the "Available transcripts" section on the IRS website at 6:15, I can clearly see "2024 Verification of Non-Filing Letter [PDF]" listed at the top with an "EN" designation. Below that are several other transcript options including what appears to be another transcript type [PDF], then "2022 Verification of Non-Filing Letter [PDF]" also with an "EN" designation, followed by "2021 Return Transcript [PDF]" with "EN", and finally "Wage & Income" at the bottom of the list. The description for the Verification of Non-Filing Letter explicitly states: "This letter states that the IRS does not have a record of a processed tax return as of the letter's date. Either no tax return was filed for this year or your tax return is still being processed." I also see information about return transcripts explaining they show "tax return as it was originally filed, including associated forms and schedules. Lending institutions offering mortgages often accept return transcripts." Does this mean my return is lost or still processing? I'm really confused about what this means, especially since I got that acceptance confirmation when I filed. Why would it show no record of my processed return? Is this normal at this stage of tax season?