tax2020 and tax2021 files won't open - AGAIN

This is honestly getting ridiculous.  

 

  • First, I complete my 2020 taxes using a known good save file (I religiously save everything MANUALLY to a second offsite backup at every save).  
  • Mid-2021, I need to access some info from my tax filing so I open TurboTax.  It updates (this is the problem) and now it won't open my KNOWN GOOD file or my SEPERATE backup.  I'm annoyed but figure it's a one off and get my info from the PDF.
  • 2022 time to start a tax file.  TT2021 will now also not open my KNOWN GOOD 2020 tax file that I used multiple times for that filing.  Extremely annoying, that's a lot of info I'm going to have to manually re-enter but I bite the bullet and start on my W-2's.
  • 2 weeks later - I have some more W-2's to enter and I pop open TT2021.  It needs to update as always.  Now it won't open my new saves either - again they were known working previously.  Before I left them I closed the program and reopened them just to make sure they worked.  The update has broken TT again.

Now I don't know what to do.  I possibly could do my taxes all in one session but I don't want to be permanently locked out of the file once I close it - that's ludicrous. 

 

I've searched for solutions and there is a ton of conjecture and Intuit offers useless platitudes like "re-install TurboTax."  It's 2022, installations of programs are not getting corrupted on disk anymore, reinstalling does nothing but waste time and energy so that people give up and just re-input the data.  

 

I have a new windows machine, never had an issue with any other corrupted files, tested these files before leaving them so I know they work anyway.  I save a separate backup offsite so it's not the file, it's the program.