Using Turbotax 2022, also got this error. Not an issue with a corrupted file, not an issue with being unable to write to the directory, not an issue with the destination missing.
I had been using "save-as" to create multiple save files to test different bonus deprecation scenarios and switching between them, had not restarted Turbotax in multiple days.
After restarting, the program could load and save just fine. I suspect there is a handle leak within the program.
