It is a phenomenon in Mac version 0.6.24.10 beta for Japan.
It can not be saved if the XD file created in the previous version is updated with the latest version. "Error: 49" is displayed.
I tried changing the coordinates of one object from the state at the time of saving, but I can not save it any more.
Newly created files can be saved.
I would be happy if you could tell me the meaning of "error 49" and how to avoid it.
When I changed the file name from Japanese to the alphabet, I can save it.