Need another solution for error 567809

There are 3 posted solutions to this error.  The first appears to be the case but why?  The second and third are clearly not the problem.

1. The file may be corrupted:

2. The location you are saving to has either moved, does not exist, or is corrupted:

3. You may not have Read/Write access privileges to the location you are attempting to save to:

I downloaded my Fidelity Investments 1099s and then my spouse's.  At that point, TurboTax unexpectedly shutdown.  I reopened the file and saw that none of the downloaded data was saved.  I was not offered a recovered file.  I repeated the process changing the order of the downloads and saving midway through.  That seemed to work until I tried to save the file and got this error.  I tried a Save As with the same result.  I started over, now for the third time, with the same result.  What do I try next?