IRS Lost Tax Return?

My 2020 tax return was rejected. When I went to TurboTax to resolve the issue, it said that the IRS deemed that my 2019 AGI was incorrect. I looked on my 2019 Tax Return, and I had entered it correctly. I followed the prompts to the "Get Transcript" portion of the IRS website, just to ensure what I had matched with what they did. What I discovered, however, was that the IRS says that my return was never filed??

 

I checked once again on TurboTax, and sure enough, it says that my returns were e-filed and accepted. I found the emails from last year confirming the same things as well. What on earth is going on??