I am having the SAME problem trying to save to Dropbox (which I have been doing since about 2014 successfully). I also know that a month ago I was able to save to dropbox when I created my mother's tax return using the SAME software (before it was just updated) with no problem.
It is baffling that in 2024 a commonly used program like this could have this type of bug. I hope it gets fixed soon
